git-annex: drop obsolete patches

pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix

@@ -68,7 +68,4 @@ self: super: {
   # Break out of "yaml >=0.10.4.0 && <0.11": https://github.com/commercialhaskell/stack/issues/4485
   stack = doJailbreak super.stack;
 
-  # Fix build with ghc 8.6.x.
-  git-annex = appendPatch super.git-annex ./patches/git-annex-fix-ghc-8.6.x-build.patch;
-
 }

pkgs/development/haskell-modules/patches/git-annex-fix-ghc-8.6.x-build.patch

@@ -1,91 +0,0 @@
-From 2e0e557e7512ddd0376f179e82c811d8b4cce401 Mon Sep 17 00:00:00 2001
-From: Joey Hess <joeyh@joeyh.name>
-Date: Sat, 5 Jan 2019 11:54:06 -0400
-Subject: [PATCH] Support being built with ghc 8.0.1 (MonadFail)
-
-Tested on an older ghc by enabling MonadFailDesugaring globally.
-
-In TransferQueue, the lack of a MonadFail for STM exposed what would
-normally be a bug in the pattern matching, although in this case an
-earlier check that the queue was not empty avoided a pattern match
-failure.
----
- Annex.hs                   |  2 ++
- Assistant/Monad.hs         |  2 ++
- Assistant/TransferQueue.hs | 21 +++++++++++----------
- CHANGELOG                  |  1 +
- 4 files changed, 16 insertions(+), 10 deletions(-)
-
-diff --git a/Annex.hs b/Annex.hs
-index 0a0368d36..af0ede1f4 100644
---- a/Annex.hs
-+++ b/Annex.hs
-@@ -74,6 +74,7 @@ import "mtl" Control.Monad.Reader
- import Control.Concurrent
- import Control.Concurrent.Async
- import Control.Concurrent.STM
-+import qualified Control.Monad.Fail as Fail
- import qualified Control.Concurrent.SSem as SSem
- import qualified Data.Map.Strict as M
- import qualified Data.Set as S
-@@ -93,6 +94,7 @@ newtype Annex a = Annex { runAnnex :: ReaderT (MVar AnnexState) IO a }
- 		MonadCatch,
- 		MonadThrow,
- 		MonadMask,
-+		Fail.MonadFail,
- 		Functor,
- 		Applicative
- 	)
-diff --git a/Assistant/Monad.hs b/Assistant/Monad.hs
-index 403ee16a8..ef2ee6012 100644
---- a/Assistant/Monad.hs
-+++ b/Assistant/Monad.hs
-@@ -27,6 +27,7 @@ module Assistant.Monad (
- 
- import "mtl" Control.Monad.Reader
- import System.Log.Logger
-+import qualified Control.Monad.Fail as Fail
- 
- import Annex.Common
- import Assistant.Types.ThreadedMonad
-@@ -49,6 +50,7 @@ newtype Assistant a = Assistant { mkAssistant :: ReaderT AssistantData IO a }
- 		Monad,
- 		MonadIO,
- 		MonadReader AssistantData,
-+		Fail.MonadFail,
- 		Functor,
- 		Applicative
- 	)
-diff --git a/Assistant/TransferQueue.hs b/Assistant/TransferQueue.hs
-index 6a4473262..7c0ab80d0 100644
---- a/Assistant/TransferQueue.hs
-+++ b/Assistant/TransferQueue.hs
-@@ -191,17 +191,18 @@ getNextTransfer acceptable = do
- 		sz <- readTVar (queuesize q)
- 		if sz < 1
- 			then retry -- blocks until queuesize changes
--			else do
--				(r@(t,info):rest) <- readTList (queuelist q)
--				void $ modifyTVar' (queuesize q) pred
--				setTList (queuelist q) rest
--				if acceptable info
--					then do
--						adjustTransfersSTM dstatus $
--							M.insert t info
--						return $ Just r
--					else return Nothing
-+			else readTList (queuelist q) >>= \case
-+				[] -> retry -- blocks until something is queued
-+				(r@(t,info):rest) -> do
-+					void $ modifyTVar' (queuesize q) pred
-+					setTList (queuelist q) rest
-+					if acceptable info
-+						then do
-+							adjustTransfersSTM dstatus $
-+								M.insert t info
-+							return $ Just r
-+						else return Nothing
- 
- {- Moves transfers matching a condition from the queue, to the
-  - currentTransfers map. -}
-