pcsx2: use wayland by default

Matches upstream behaviour as per
https://pcsx2.net/blog/2025/pcsx2-2.4_2.2#wayland-by-default.

Signed-off-by: Marcin Serwin <[e-mail]>

pkgs/by-name/pc/pcsx2/package.nix

···
   libwebp,
   llvmPackages,
   lz4,
-  makeWrapper,
   pkg-config,
   qt6,
   shaderc,
···
 
   preFixup = ''
     qtWrapperArgs+=("''${gappsWrapperArgs[@]}")
-  '';
-
-  # https://github.com/PCSX2/pcsx2/pull/10200
-  # Can't avoid the double wrapping, the binary wrapper from qtWrapperArgs doesn't support --run
-  postFixup = ''
-    source "${makeWrapper}/nix-support/setup-hook"
-    wrapProgram $out/bin/pcsx2-qt \
-      --run 'if [[ -z $I_WANT_A_BROKEN_WAYLAND_UI ]]; then export QT_QPA_PLATFORM=xcb; fi'
   '';
 
   passthru = {