Remove python_framework.patch

In the [discussion](https://github.com/NixOS/nixpkgs/pull/18801) of this pull
request @LnL7 was unable to complete a darwin build because the
python_framework.patch does not apply and suggests it should be removed.

pkgs/applications/editors/vim/configurable.nix

@@ -69,12 +69,6 @@ composableDerivation {
 
     prePatch = "cd src";
 
-    # if darwin support is enabled, we want to make sure we're not building with
-    # OS-installed python framework
-    patches = stdenv.lib.optionals
-      (stdenv.isDarwin && (config.vim.darwin or true))
-      [ ./python_framework.patch ];
-
     configureFlags
       = [ "--enable-gui=${args.gui}" "--with-features=${args.features}" ];