Remove boot.loader.grub.timeout and boot.loader.gummiboot.timeout

There is a generic boot.loader.timeout option.

nixos/modules/system/boot/loader/grub/grub.nix

@@ -48,12 +48,13 @@ let
       bootPath = args.path;
       storePath = config.boot.loader.grub.storePath;
       bootloaderId = if args.efiBootloaderId == null then "NixOS${efiSysMountPoint'}" else args.efiBootloaderId;
+      timeout = if config.boot.loader.timeout == null then -1 else config.boot.loader.timeout;
       inherit efiSysMountPoint;
       inherit (args) devices;
       inherit (efi) canTouchEfiVariables;
       inherit (cfg)
         version extraConfig extraPerEntryConfig extraEntries
-        extraEntriesBeforeNixOS extraPrepareConfig configurationLimit copyKernels timeout
+        extraEntriesBeforeNixOS extraPrepareConfig configurationLimit copyKernels
         default fsIdentifier efiSupport gfxmodeEfi gfxmodeBios;
       path = (makeBinPath ([
         pkgs.coreutils pkgs.gnused pkgs.gnugrep pkgs.findutils pkgs.diffutils pkgs.btrfs-progs
@@ -313,14 +314,6 @@ in
         '';
       };
 
-      timeout = mkOption {
-        default = if (config.boot.loader.timeout != null) then config.boot.loader.timeout else -1;
-        type = types.int;
-        description = ''
-          Timeout (in seconds) until GRUB boots the default menu item.
-        '';
-      };
-
       default = mkOption {
         default = 0;
         type = types.int;

nixos/modules/system/boot/loader/gummiboot/gummiboot.nix

@@ -16,7 +16,7 @@ let
 
     nix = config.nix.package.out;
 
-    timeout = if cfg.timeout != null then cfg.timeout else "";
+    timeout = if config.boot.loader.timeout != null then config.boot.loader.timeout else "";
 
     inherit (efi) efiSysMountPoint canTouchEfiVariables;
   };
@@ -29,20 +29,6 @@ in {
 
       description = "Whether to enable the gummiboot UEFI boot manager";
     };
-
-    timeout = mkOption {
-      default = if config.boot.loader.timeout == null then 10000 else config.boot.loader.timeout;
-
-      example = 4;
-
-      type = types.nullOr types.int;
-
-      description = ''
-        Timeout (in seconds) for how long to show the menu (null if none).
-        Note that even with no timeout the menu can be forced if the space
-        key is pressed during bootup
-      '';
-    };
   };
 
   config = mkIf cfg.enable {