diff --git a/source/blender/editors/space_action/action_intern.h b/source/blender/editors/space_action/action_intern.h
index bf2880dea36..eaca7968a34 100644
--- a/source/blender/editors/space_action/action_intern.h
+++ b/source/blender/editors/space_action/action_intern.h
@@ -40,8 +40,6 @@ struct wmOperatorType;
 /* **************************************** */
 /* space_action.c / action_buttons.c */
 
-struct ARegion *action_has_buttons_region(struct ScrArea *sa);
-
 void action_buttons_register(struct ARegionType *art);
 
 /* ***************************************** */
diff --git a/source/blender/editors/space_action/space_action.c b/source/blender/editors/space_action/space_action.c
index eda8ad4a787..4c133e6a91e 100644
--- a/source/blender/editors/space_action/space_action.c
+++ b/source/blender/editors/space_action/space_action.c
@@ -56,34 +56,6 @@
 #include "action_intern.h" /* own include */
 #include "GPU_framebuffer.h"
 
-/* ******************** manage regions ********************* */
-
-ARegion *action_has_buttons_region(ScrArea *sa)
-{
-  ARegion *ar, *arnew;
-
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_UI);
-  if (ar)
-    return ar;
-
-  /* add subdiv level; after main */
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_WINDOW);
-
-  /* is error! */
-  if (ar == NULL)
-    return NULL;
-
-  arnew = MEM_callocN(sizeof(ARegion), "buttons for action");
-
-  BLI_insertlinkafter(&sa->regionbase, ar, arnew);
-  arnew->regiontype = RGN_TYPE_UI;
-  arnew->alignment = RGN_ALIGN_RIGHT;
-
-  arnew->flag = RGN_FLAG_HIDDEN;
-
-  return arnew;
-}
-
 /* ******************** default callbacks for action space ***************** */
 
 static SpaceLink *action_new(const ScrArea *sa, const Scene *scene)
diff --git a/source/blender/editors/space_graph/graph_intern.h b/source/blender/editors/space_graph/graph_intern.h
index 73dd1ae68f7..606f4bc3fe3 100644
--- a/source/blender/editors/space_graph/graph_intern.h
+++ b/source/blender/editors/space_graph/graph_intern.h
@@ -35,10 +35,6 @@ struct bContext;
 
 /* internal exports only */
 
-/* ***************************************** */
-/* space_graph.c */
-struct ARegion *graph_has_buttons_region(struct ScrArea *sa);
-
 /* ***************************************** */
 /* graph_draw.c */
 void graph_draw_channel_names(struct bContext *C, struct bAnimContext *ac, struct ARegion *ar);
diff --git a/source/blender/editors/space_graph/space_graph.c b/source/blender/editors/space_graph/space_graph.c
index 8751fe5199d..8fb5cb1d18a 100644
--- a/source/blender/editors/space_graph/space_graph.c
+++ b/source/blender/editors/space_graph/space_graph.c
@@ -60,34 +60,6 @@
 
 #include "graph_intern.h"  // own include
 
-/* ******************** manage regions ********************* */
-
-ARegion *graph_has_buttons_region(ScrArea *sa)
-{
-  ARegion *ar, *arnew;
-
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_UI);
-  if (ar)
-    return ar;
-
-  /* add subdiv level; after main */
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_WINDOW);
-
-  /* is error! */
-  if (ar == NULL)
-    return NULL;
-
-  arnew = MEM_callocN(sizeof(ARegion), "buttons for graph");
-
-  BLI_insertlinkafter(&sa->regionbase, ar, arnew);
-  arnew->regiontype = RGN_TYPE_UI;
-  arnew->alignment = RGN_ALIGN_RIGHT;
-
-  arnew->flag = RGN_FLAG_HIDDEN;
-
-  return arnew;
-}
-
 /* ******************** default callbacks for ipo space ***************** */
 
 static SpaceLink *graph_new(const ScrArea *UNUSED(sa), const Scene *scene)
diff --git a/source/blender/editors/space_image/image_intern.h b/source/blender/editors/space_image/image_intern.h
index 180ad93a33c..a851684f2f3 100644
--- a/source/blender/editors/space_image/image_intern.h
+++ b/source/blender/editors/space_image/image_intern.h
@@ -34,8 +34,6 @@ struct bNodeTree;
 struct wmOperatorType;
 
 /* space_image.c */
-struct ARegion *image_has_buttons_region(struct ScrArea *sa);
-struct ARegion *image_has_tools_region(struct ScrArea *sa);
 
 extern const char *image_context_dir[]; /* doc access */
 
diff --git a/source/blender/editors/space_image/space_image.c b/source/blender/editors/space_image/space_image.c
index f3ed84b3277..ded19b10300 100644
--- a/source/blender/editors/space_image/space_image.c
+++ b/source/blender/editors/space_image/space_image.c
@@ -115,66 +115,6 @@ static void image_user_refresh_scene(const bContext *C, SpaceImage *sima)
   ED_space_image_auto_set(C, sima);
 }
 
-/* ******************** manage regions ********************* */
-
-ARegion *image_has_buttons_region(ScrArea *sa)
-{
-  ARegion *ar, *arnew;
-
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_UI);
-  if (ar) {
-    return ar;
-  }
-
-  /* add subdiv level; after header */
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_HEADER);
-
-  /* is error! */
-  if (ar == NULL) {
-    return NULL;
-  }
-
-  arnew = MEM_callocN(sizeof(ARegion), "buttons for image");
-
-  BLI_insertlinkafter(&sa->regionbase, ar, arnew);
-  arnew->regiontype = RGN_TYPE_UI;
-  arnew->alignment = RGN_ALIGN_RIGHT;
-
-  arnew->flag = RGN_FLAG_HIDDEN;
-
-  return arnew;
-}
-
-ARegion *image_has_tools_region(ScrArea *sa)
-{
-  ARegion *ar, *arnew;
-
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_TOOLS);
-  if (ar) {
-    return ar;
-  }
-
-  /* add subdiv level; after buttons */
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_UI);
-
-  /* is error! */
-  if (ar == NULL) {
-    return NULL;
-  }
-
-  arnew = MEM_callocN(sizeof(ARegion), "scopes for image");
-
-  BLI_insertlinkafter(&sa->regionbase, ar, arnew);
-  arnew->regiontype = RGN_TYPE_TOOLS;
-  arnew->alignment = RGN_ALIGN_LEFT;
-
-  arnew->flag = RGN_FLAG_HIDDEN;
-
-  image_scopes_tag_refresh(sa);
-
-  return arnew;
-}
-
 /* ******************** default callbacks for image space ***************** */
 
 static SpaceLink *image_new(const ScrArea *UNUSED(area), const Scene *UNUSED(scene))
diff --git a/source/blender/editors/space_nla/nla_intern.h b/source/blender/editors/space_nla/nla_intern.h
index ea067cf4847..2b20ab69fa7 100644
--- a/source/blender/editors/space_nla/nla_intern.h
+++ b/source/blender/editors/space_nla/nla_intern.h
@@ -32,8 +32,6 @@
 /* **************************************** */
 /* space_nla.c / nla_buttons.c */
 
-ARegion *nla_has_buttons_region(ScrArea *sa);
-
 bool nla_panel_context(const bContext *C,
                        PointerRNA *adt_ptr,
                        PointerRNA *nlt_ptr,
diff --git a/source/blender/editors/space_nla/space_nla.c b/source/blender/editors/space_nla/space_nla.c
index ccf2e552644..26a7b42efd2 100644
--- a/source/blender/editors/space_nla/space_nla.c
+++ b/source/blender/editors/space_nla/space_nla.c
@@ -53,34 +53,6 @@
 #include "nla_intern.h" /* own include */
 #include "GPU_framebuffer.h"
 
-/* ******************** manage regions ********************* */
-
-ARegion *nla_has_buttons_region(ScrArea *sa)
-{
-  ARegion *ar, *arnew;
-
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_UI);
-  if (ar)
-    return ar;
-
-  /* add subdiv level; after main */
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_WINDOW);
-
-  /* is error! */
-  if (ar == NULL)
-    return NULL;
-
-  arnew = MEM_callocN(sizeof(ARegion), "buttons for nla");
-
-  BLI_insertlinkafter(&sa->regionbase, ar, arnew);
-  arnew->regiontype = RGN_TYPE_UI;
-  arnew->alignment = RGN_ALIGN_RIGHT;
-
-  arnew->flag = RGN_FLAG_HIDDEN;
-
-  return arnew;
-}
-
 /* ******************** default callbacks for nla space ***************** */
 
 static SpaceLink *nla_new(const ScrArea *sa, const Scene *scene)
diff --git a/source/blender/editors/space_node/node_intern.h b/source/blender/editors/space_node/node_intern.h
index ce198d3e85c..cb185d6cef2 100644
--- a/source/blender/editors/space_node/node_intern.h
+++ b/source/blender/editors/space_node/node_intern.h
@@ -54,8 +54,6 @@ typedef struct bNodeLinkDrag {
 } bNodeLinkDrag;
 
 /* space_node.c */
-ARegion *node_has_buttons_region(ScrArea *sa);
-ARegion *node_has_tools_region(ScrArea *sa);
 
 /* transform between View2Ds in the tree path */
 void snode_group_offset(struct SpaceNode *snode, float *x, float *y);
diff --git a/source/blender/editors/space_node/space_node.c b/source/blender/editors/space_node/space_node.c
index 52dab2a44a8..94380814fe8 100644
--- a/source/blender/editors/space_node/space_node.c
+++ b/source/blender/editors/space_node/space_node.c
@@ -242,64 +242,6 @@ void snode_group_offset(SpaceNode *snode, float *x, float *y)
   }
 }
 
-/* ******************** manage regions ********************* */
-
-ARegion *node_has_buttons_region(ScrArea *sa)
-{
-  ARegion *ar, *arnew;
-
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_UI);
-  if (ar) {
-    return ar;
-  }
-
-  /* add subdiv level; after header */
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_HEADER);
-
-  /* is error! */
-  if (ar == NULL) {
-    return NULL;
-  }
-
-  arnew = MEM_callocN(sizeof(ARegion), "buttons for node");
-
-  BLI_insertlinkafter(&sa->regionbase, ar, arnew);
-  arnew->regiontype = RGN_TYPE_UI;
-  arnew->alignment = RGN_ALIGN_RIGHT;
-
-  arnew->flag = RGN_FLAG_HIDDEN;
-
-  return arnew;
-}
-
-ARegion *node_has_tools_region(ScrArea *sa)
-{
-  ARegion *ar, *arnew;
-
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_TOOLS);
-  if (ar) {
-    return ar;
-  }
-
-  /* add subdiv level; after header */
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_HEADER);
-
-  /* is error! */
-  if (ar == NULL) {
-    return NULL;
-  }
-
-  arnew = MEM_callocN(sizeof(ARegion), "node tools");
-
-  BLI_insertlinkafter(&sa->regionbase, ar, arnew);
-  arnew->regiontype = RGN_TYPE_TOOLS;
-  arnew->alignment = RGN_ALIGN_LEFT;
-
-  arnew->flag = RGN_FLAG_HIDDEN;
-
-  return arnew;
-}
-
 /* ******************** default callbacks for node space ***************** */
 
 static SpaceLink *node_new(const ScrArea *UNUSED(area), const Scene *UNUSED(scene))
diff --git a/source/blender/editors/space_sequencer/sequencer_intern.h b/source/blender/editors/space_sequencer/sequencer_intern.h
index 88181e4127f..9244bbb3034 100644
--- a/source/blender/editors/space_sequencer/sequencer_intern.h
+++ b/source/blender/editors/space_sequencer/sequencer_intern.h
@@ -42,9 +42,6 @@ struct bContext;
 struct rctf;
 struct wmOperator;
 
-/* space_sequencer.c */
-struct ARegion *sequencer_has_buttons_region(struct ScrArea *sa);
-
 /* sequencer_draw.c */
 void draw_timeline_seq(const struct bContext *C, struct ARegion *ar);
 void sequencer_draw_preview(const struct bContext *C,
diff --git a/source/blender/editors/space_sequencer/space_sequencer.c b/source/blender/editors/space_sequencer/space_sequencer.c
index 35c031e8bc8..30aca84f4e0 100644
--- a/source/blender/editors/space_sequencer/space_sequencer.c
+++ b/source/blender/editors/space_sequencer/space_sequencer.c
@@ -68,34 +68,6 @@ static void sequencer_scopes_tag_refresh(ScrArea *sa)
 
 /* ******************** manage regions ********************* */
 
-ARegion *sequencer_has_buttons_region(ScrArea *sa)
-{
-  ARegion *ar, *arnew;
-
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_UI);
-  if (ar) {
-    return ar;
-  }
-
-  /* add subdiv level; after header */
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_HEADER);
-
-  /* is error! */
-  if (ar == NULL) {
-    return NULL;
-  }
-
-  arnew = MEM_callocN(sizeof(ARegion), "buttons for sequencer");
-
-  BLI_insertlinkafter(&sa->regionbase, ar, arnew);
-  arnew->regiontype = RGN_TYPE_UI;
-  arnew->alignment = RGN_ALIGN_RIGHT;
-
-  arnew->flag = RGN_FLAG_HIDDEN;
-
-  return arnew;
-}
-
 static ARegion *sequencer_find_region(ScrArea *sa, short type)
 {
   ARegion *ar = NULL;
diff --git a/source/blender/editors/space_view3d/space_view3d.c b/source/blender/editors/space_view3d/space_view3d.c
index 85264fe4bbc..a829584b580 100644
--- a/source/blender/editors/space_view3d/space_view3d.c
+++ b/source/blender/editors/space_view3d/space_view3d.c
@@ -82,75 +82,6 @@
 
 /* ******************** manage regions ********************* */
 
-ARegion *view3d_has_buttons_region(ScrArea *sa)
-{
-  ARegion *ar, *arnew;
-
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_UI);
-  if (ar) {
-    return ar;
-  }
-
-  /* add subdiv level; after header */
-  ar = BKE_area_find_region_type(sa, RGN_TYPE_HEADER);
-
-  /* is error! */
-  if (ar == NULL) {
-    return NULL;
-  }
-
-  arnew = MEM_callocN(sizeof(ARegion), "buttons for view3d");
-
-  BLI_insertlinkafter(&sa->regionbase, ar, arnew);
-  arnew->regiontype = RGN_TYPE_UI;
-  arnew->alignment = RGN_ALIGN_RIGHT;
-
-  arnew->flag = RGN_FLAG_HIDDEN;
-
-  return arnew;
-}
-
-ARegion *view3d_has_tools_region(ScrArea *sa)
-{
-  ARegion *ar, *artool = NULL, *arhead;
-
-  for (ar = sa->regionbase.first; ar; ar = ar->next) {
-    if (ar->regiontype == RGN_TYPE_TOOLS) {
-      artool = ar;
-    }
-  }
-
-  /* tool region hide/unhide also hides props */
-  if (artool) {
-    return artool;
-  }
-
-  if (artool == NULL) {
-    /* add subdiv level; after header */
-    for (arhead = sa->regionbase.first; arhead; arhead = arhead->next) {
-      if (arhead->regiontype == RGN_TYPE_HEADER) {
-        break;
-      }
-    }
-
-    /* is error! */
-    if (arhead == NULL) {
-      return NULL;
-    }
-
-    artool = MEM_callocN(sizeof(ARegion), "tools for view3d");
-
-    BLI_insertlinkafter(&sa->regionbase, arhead, artool);
-    artool->regiontype = RGN_TYPE_TOOLS;
-    artool->alignment = RGN_ALIGN_LEFT;
-    artool->flag = RGN_FLAG_HIDDEN;
-  }
-
-  return artool;
-}
-
-/* ****************************************************** */
-
 /* function to always find a regionview3d context inside 3D window */
 RegionView3D *ED_view3d_context_rv3d(bContext *C)
 {
diff --git a/source/blender/editors/space_view3d/view3d_intern.h b/source/blender/editors/space_view3d/view3d_intern.h
index 4974e2269b3..d3d0254578b 100644
--- a/source/blender/editors/space_view3d/view3d_intern.h
+++ b/source/blender/editors/space_view3d/view3d_intern.h
@@ -266,9 +266,6 @@ void VIEW3D_OT_snap_cursor_to_selected(struct wmOperatorType *ot);
 void VIEW3D_OT_snap_cursor_to_active(struct wmOperatorType *ot);
 
 /* space_view3d.c */
-struct ARegion *view3d_has_buttons_region(struct ScrArea *sa);
-struct ARegion *view3d_has_tools_region(struct ScrArea *sa);
-
 extern const char *view3d_context_dir[]; /* doc access */
 
 /* view3d_widgets.c */