Revert "Add darwin code signing wrt #322 and #318"

This reverts commit 8cc333d8d5.

lib/GHCup.hs

@@ -2626,7 +2626,6 @@ upgradeGHCup :: ( MonadMask m
 upgradeGHCup mtarget force' = do
   Dirs {..} <- lift getDirs
   GHCupInfo { _ghcupDownloads = dls } <- lift getGHCupInfo
-  PlatformRequest {..} <- lift getPlatformReq
 
   lift $ logInfo "Upgrading GHCup..."
   let latestVer = fromJust $ fst <$> getLatest dls GHCup
@@ -2646,7 +2645,6 @@ upgradeGHCup mtarget force' = do
   copyFileE p
                                                            destFile
   lift $ chmod_755 destFile
-  liftE $ catchWarn $ lEM @_ @'[ProcessError] $ darwinCodeSign _rPlatform destFile
 
   liftIO (isInPath destFile) >>= \b -> unless b $
     lift $ logWarn $ T.pack (takeFileName destFile) <> " is not in PATH! You have to add it in order to use ghcup."

lib/GHCup/Utils.hs

@@ -1028,17 +1028,6 @@ darwinNotarization Darwin path = exec
   Nothing
 darwinNotarization _ _ = pure $ Right ()
 
-darwinCodeSign :: (MonadReader env m, HasDirs env, MonadIO m)
-                   => Platform
-                   -> FilePath
-                   -> m (Either ProcessError ())
-darwinCodeSign Darwin path = exec
-  "codesign"
-  ["-s", "-", path]
-  Nothing
-  Nothing
-darwinCodeSign _ _ = pure $ Right ()
-
 
 getChangeLog :: GHCupDownloads -> Tool -> Either Version Tag -> Maybe URI
 getChangeLog dls tool (Left v') =