oneDNN_2: drop

pkgs/by-name/on/oneDNN_2/package.nix

@@ -1,53 +0,0 @@
-{
-  cmake,
-  fetchFromGitHub,
-  lib,
-  stdenv,
-}:
-
-# This was originally called mkl-dnn, then it was renamed to dnnl, and it has
-# just recently been renamed again to oneDNN. See here for details:
-# https://github.com/oneapi-src/oneDNN#oneapi-deep-neural-network-library-onednn
-stdenv.mkDerivation (finalAttrs: {
-  pname = "oneDNN";
-  version = "2.7.5";
-
-  src = fetchFromGitHub {
-    owner = "oneapi-src";
-    repo = "oneDNN";
-    rev = "v${finalAttrs.version}";
-    sha256 = "sha256-oMPBORAdL2rk2ewyUrInYVHYBRvuvNX4p4rwykO3Rhs=";
-  };
-
-  outputs = [
-    "out"
-    "dev"
-    "doc"
-  ];
-
-  nativeBuildInputs = [ cmake ];
-
-  # Tests fail on some Hydra builders, because they do not support SSE4.2.
-  doCheck = false;
-
-  # Fixup bad cmake paths
-  postInstall = ''
-    substituteInPlace $out/lib/cmake/dnnl/dnnl-config.cmake \
-      --replace "\''${PACKAGE_PREFIX_DIR}/" ""
-
-    substituteInPlace $out/lib/cmake/dnnl/dnnl-targets.cmake \
-      --replace "\''${_IMPORT_PREFIX}/" ""
-  '';
-
-  meta = {
-    changelog = "https://github.com/oneapi-src/oneDNN/releases/tag/v${finalAttrs.version}";
-    description = "oneAPI Deep Neural Network Library (oneDNN)";
-    homepage = "https://01.org/oneDNN";
-    license = lib.licenses.asl20;
-    maintainers = with lib.maintainers; [
-      alexarice
-      bhipple
-    ];
-    platforms = lib.platforms.all;
-  };
-})

pkgs/top-level/aliases.nix

@@ -1412,6 +1412,7 @@ mapAliases {
   odoo15 = throw "odoo15 has been removed from nixpkgs as it is unsupported; migrate to a newer version of odoo"; # Added 2025-05-06
   offrss = throw "offrss has been removed due to lack of upstream maintenance; consider using another rss reader"; # Added 2025-06-01
   oil = lib.warnOnInstantiate "Oil has been replaced with the faster native C++ version and renamed to 'oils-for-unix'. See also https://github.com/oils-for-unix/oils/wiki/Oils-Deployments" oils-for-unix; # Added 2024-10-22
+  oneDNN_2 = throw "oneDNN_2 has been removed as it was only used by rocmPackages.migraphx"; # added 2025-07-18
   onevpl-intel-gpu = lib.warnOnInstantiate "onevpl-intel-gpu has been renamed to vpl-gpu-rt" vpl-gpu-rt; # Added 2024-06-04
   openai-whisper-cpp = whisper-cpp; # Added 2024-12-13
   opencv2 = throw "opencv2 has been removed as it is obsolete and was not used by any other package; please migrate to OpenCV 4"; # Added 2024-08-20