pinwheel: Remove retroarch

hosts/pinwheel/modules/games/default.nix

@@ -1,16 +1,6 @@
 { pkgs, ... }:
 {
   home-manager.users.alex = {
-    home.packages = [
+    home.packages = [ pkgs.brogue-ce ];
-      pkgs.brogue-ce
-
-      (pkgs.retroarch.override {
-        cores = [
-          pkgs.libretro.genesis-plus-gx
-          pkgs.libretro.snes9x
-          pkgs.libretro.dolphin
-        ];
-      })
-    ];
   };
 }