haskell-spy: drop obsolete override

pkgs/development/haskell-modules/configuration-common.nix

@@ -981,9 +981,6 @@ self: super: {
     '';
   });
 
-  # https://bitbucket.org/ssaasen/spy/pull-requests/3/fsnotify-dropped-system-filepath
-  spy = appendPatch super.spy ./patches/spy.patch;
-
   idris = overrideCabal super.idris (drv: {
     # "idris" binary cannot find Idris library otherwise while building. After
     # installing it's completely fine though. This seems like a bug in Idris

pkgs/development/haskell-modules/patches/spy.patch

@@ -1,26 +0,0 @@
-diff --git a/src/Spy/Watcher.hs b/src/Spy/Watcher.hs
-     index 8512613..4df67d4 100644
---- a/src/Spy/Watcher.hs
-+++ b/src/Spy/Watcher.hs
-@@ -50,7 +50,7 @@ plainFormat = Plain
- spy :: Spy -> IO b -> IO ()
- spy config after = withManager $ \wm ->
-     runIndefinitely
--      (watchTree wm (decodeString $ dir config)
-+      (watchTree wm (dir config)
-                   (not . skipEvent config . eventPath)
-                   (handleEvent config)) 
-       (const after)
-@@ -106,9 +106,9 @@ eventTime (Modified _ t) = t
- eventTime (Removed _ t) = t
- 
- eventPath :: Event -> FilePath
--eventPath (Added fp _) = encodeString fp
--eventPath (Modified fp _) = encodeString fp
--eventPath (Removed fp _) = encodeString fp
-+eventPath (Added fp _) = fp
-+eventPath (Modified fp _) = fp
-+eventPath (Removed fp _) = fp
- 
- eventType :: Event -> FilePath
- eventType (Added _ _) = "Added"