nvidia_x11_legacy304: remove

The patch used to build is no longer available.
We only have one kernel 4.14 that could theoretical build with it?

pkgs/os-specific/linux/nvidia-x11/default.nix

@@ -14,15 +14,6 @@ let
 
   kernel = callPackage # a hacky way of extracting parameters from callPackage
     ({ kernel, libsOnly ? false }: if libsOnly then { } else kernel) { };
-
-  maybePatch_drm_legacy =
-    lib.optional (lib.versionOlder "4.14" (kernel.version or "0"))
-      (fetchurl {
-        url = "https://raw.githubusercontent.com/MilhouseVH/LibreELEC.tv/b5d2d6a1"
-            + "/packages/x11/driver/xf86-video-nvidia-legacy/patches/"
-            + "xf86-video-nvidia-legacy-0010-kernel-4.14.patch";
-        sha256 = "18clfpw03g8dxm61bmdkmccyaxir3gnq451z6xqa2ilm3j820aa5";
-      });
 in
 rec {
   # Policy: use the highest stable version as the default (on our master).
@@ -73,32 +64,4 @@ rec {
 
     patches = [ ./vm_operations_struct-fault.patch ];
   };
-
-  legacy_304 = generic {
-    version = "304.137";
-    sha256_32bit = "1y34c2gvmmacxk2c72d4hsysszncgfndc4s1nzldy2q9qagkg66a";
-    sha256_64bit = "1qp3jv6279k83k3z96p6vg3dd35y9bhmlyyyrkii7sib7bdmc7zb";
-    settingsSha256 = "129f0j0hxzjd7g67qwxn463rxp295fsq8lycwm6272qykmab46cj";
-    persistencedSha256 = null;
-    useGLVND = false;
-    useProfiles = false;
-    settings32Bit = true;
-
-    prePatch = let
-      debPatches = fetchurl {
-        url = "mirror://debian/pool/non-free/n/nvidia-graphics-drivers-legacy-304xx/"
-            + "nvidia-graphics-drivers-legacy-304xx_304.137-5.debian.tar.xz";
-        sha256 = "0n8512mfcnvklfbg8gv4lzbkm3z6nncwj6ix2b8ngdkmc04f3b6l";
-      };
-      prefix = "debian/module/debian/patches";
-      applyPatches = pnames: if pnames == [] then null else
-        ''
-          tar xf '${debPatches}'
-          sed 's|^\([+-]\{3\} [ab]\)/|\1/kernel/|' -i ${prefix}/*.patch
-          patches="$patches ${lib.concatMapStringsSep " " (pname: "${prefix}/${pname}.patch") pnames}"
-        '';
-    in applyPatches [ "fix-typos" ];
-    patches = maybePatch_drm_legacy;
-    broken = lib.versionAtLeast kernel.version "4.18";
-  };
 }

pkgs/top-level/all-packages.nix

@@ -20293,7 +20293,6 @@ in
 
     nvidiaPackages = dontRecurseIntoAttrs (callPackage ../os-specific/linux/nvidia-x11 { });
 
-    nvidia_x11_legacy304   = nvidiaPackages.legacy_304;
     nvidia_x11_legacy340   = nvidiaPackages.legacy_340;
     nvidia_x11_legacy390   = nvidiaPackages.legacy_390;
     nvidia_x11_beta        = nvidiaPackages.beta;