fix(steam): use Remote Play firewall rules

configs/nixos/modules/desktop/apps/steam.nix

@@ -6,9 +6,6 @@
   ...
 }:
 # Steam game launcher and runtime integration.
-let
-  steamVrLauncher = "/home/${config.user.name}/.local/share/Steam/steamapps/common/SteamVR/bin/linux64/vrcompositor-launcher";
-in
 {
   options.modules.desktop.apps.steam.enable = lib.mkEnableOption "Steam game launcher";
 
@@ -17,6 +14,7 @@ in
 
     programs.steam = {
       enable = true;
+      remotePlay.openFirewall = true;
       package = pkgs.steam.override {
         extraEnv.STEAM_FORCE_DESKTOPUI_SCALING = "1.5";
       };
@@ -29,25 +27,6 @@ in
       capSysNice = true;
     };
 
-    networking.firewall.allowedUDPPorts = [ 10400 ];
-
-    systemd.paths.steamvr-capabilities = {
-      wantedBy = [ "multi-user.target" ];
-      pathConfig = {
-        PathChanged = steamVrLauncher;
-        Unit = "steamvr-capabilities.service";
-      };
-    };
-
-    systemd.services.steamvr-capabilities = {
-      wantedBy = [ "multi-user.target" ];
-      path = [ pkgs.libcap ];
-      script = ''
-        setcap cap_sys_nice=eip ${lib.escapeShellArg steamVrLauncher}
-      '';
-      serviceConfig.Type = "oneshot";
-    };
-
     registry.window-icon.${config.networking.hostName}.steam = {
       class = "[Ss]team";
       icon = util.glyph "f1b6";