ja2-stracciatella: remove darwin stubs

These should be NOOPs.

pkgs/games/ja2-stracciatella/default.nix

@@ -10,8 +10,6 @@
   fltk,
   rapidjson,
   gtest,
-  Carbon,
-  Cocoa,
 }:
 let
   version = "0.17.0";
@@ -46,17 +44,12 @@ stdenv.mkDerivation {
     cmake
     python3
   ];
-  buildInputs =
-    [
-      SDL2
-      fltk
-      rapidjson
-      gtest
-    ]
-    ++ lib.optionals stdenv.hostPlatform.isDarwin [
-      Carbon
-      Cocoa
-    ];
+  buildInputs = [
+    SDL2
+    fltk
+    rapidjson
+    gtest
+  ];
 
   patches = [
     ./remove-rust-buildstep.patch

pkgs/top-level/all-packages.nix

@@ -16308,9 +16308,7 @@ with pkgs;
   # used as base package for iortcw forks
   iortcw_sp = callPackage ../games/iortcw/sp.nix { };
 
-  ja2-stracciatella = callPackage ../games/ja2-stracciatella {
-    inherit (darwin.apple_sdk.frameworks) Carbon Cocoa;
-  };
+  ja2-stracciatella = callPackage ../games/ja2-stracciatella { };
 
   katagoWithCuda = katago.override {
     backend = "cuda";