mednaffe: remove gtk2

Upstream has removed support for it.

(cherry picked from commit c061809b07)

pkgs/misc/emulators/mednaffe/default.nix

@@ -4,8 +4,7 @@
 , autoreconfHook
 , pkg-config
 , mednafen
-, gtk2 ? null
-, gtk3 ? null
+, gtk3
 , wrapGAppsHook
 }:
 
@@ -21,16 +20,11 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ autoreconfHook pkg-config wrapGAppsHook ];
-  buildInputs = [ gtk2 gtk3 mednafen ];
-
-  configureFlags = [ (lib.enableFeature (gtk3 != null) "gtk3") ];
-
-  dontWrapGApps = true;
+  buildInputs = [ gtk3 mednafen ];
 
   postInstall = ''
     wrapProgram $out/bin/mednaffe \
-      --prefix PATH ':' "${mednafen}/bin" \
-      "''${gappsWrapperArgs[@]}"
+      --prefix PATH ':' "${mednafen}/bin"
    '';
 
   meta = with lib; {

pkgs/top-level/all-packages.nix

@@ -7548,9 +7548,7 @@ with pkgs;
 
   mednafen-server = callPackage ../misc/emulators/mednafen/server.nix { };
 
-  mednaffe = callPackage ../misc/emulators/mednaffe {
-    gtk2 = null;
-  };
+  mednaffe = callPackage ../misc/emulators/mednaffe { };
 
   megacli = callPackage ../tools/misc/megacli { };