diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 63d7de3324..1878228b17 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -553,11 +553,6 @@ def drop_table(table_name, **options)
       #   <tt>:datetime</tt>, and <tt>:time</tt> columns.
       # * <tt>:scale</tt> -
       #   Specifies the scale for the <tt>:decimal</tt> and <tt>:numeric</tt> columns.
-      # * <tt>:collation</tt> -
-      #   Specifies the collation for a <tt>:string</tt> or <tt>:text</tt> column. If not specified, the
-      #   column will have the same collation as the table.
-      # * <tt>:comment</tt> -
-      #   Specifies the comment for the column. This option is ignored by some backends.
       # * <tt>:if_not_exists</tt> -
       #   Specifies if the column already exists to not try to re-add it. This will avoid
       #   duplicate column errors.