Revert "lib.buildNixpkgsConfig: limit rocm to only specific target"

This reverts commit 45c523bdaa.

devices/pc/default.nix

@@ -32,7 +32,7 @@ inputs:
           # SAHF FXSR XSAVE RDRND LZCNT HLE PREFETCHW SGX PCONFIG
           "icelake-server"
         ];
-        nixpkgs = { march = "znver5"; rocm = [ "gfx1151" ]; };
+        nixpkgs = { march = "znver5"; rocm = true; };
         sysctl.laptop-mode = 5;
         kernel = { variant = "cachyos"; patches = [ "btusb" ]; };
       };

flake/lib/buildNixpkgsConfig/default.nix

@@ -16,7 +16,7 @@ let
     // (inputs.lib.optionalAttrs (nixpkgs.cuda.forwardCompat != null)
       { cudaForwardCompat = nixpkgs.cuda.forwardCompat; })
   );
-  rocmConfig = inputs.lib.optionalAttrs (nixpkgs.rocm or null != null) { rocmSupport = true; };
+  rocmConfig = inputs.lib.optionalAttrs (nixpkgs.rocm or false) { rocmSupport = true; };
   allowInsecurePredicate = p: inputs.lib.warn "Allowing insecure package ${p.name or "${p.pname}-${p.version}"}" true;
   config = cudaConfig // rocmConfig
     // {
@@ -173,12 +173,5 @@ in platformConfig //
       # // (inputs.lib.optionalAttrs (nixpkgs.march == "silvermont")
       #   { c-blosc = prev.c-blosc.overrideAttrs { doCheck = false; }; })
       # // (inputs.lib.optionalAttrs (nixpkgs.arch or null == "aarch64") { nix = final.nixVersions.nix_2_29; })
-
-      # pick from https://github.com/nix-community/nur-combined/blob/e60d2cac468d38a97874108c1601de2ce0ca23b8/repos/slaier/outputs/_hosts/local/hardware-configuration.nix#L45
-      // (inputs.lib.optionalAttrs (nixpkgs.rocm or null != null)
-      {
-        rocmPackages = prev.rocmPackages.overrideScope (final: prev:
-          { clr = prev.clr.override { localGpuTargets = nixpkgs.rocm; }; });
-      })
   )];
 }

modules/system/nixpkgs.nix

@@ -12,7 +12,7 @@ inputs:
       };});
       default = null;
     };
-    rocm = mkOption { type = types.nullOr (types.listOf types.str); default = null; };
+    rocm = mkOption { type = types.bool; default = false; };
   };
   config = let inherit (inputs.config.nixos.system) nixpkgs; in
   {