lib: remove lib.options.mkPackageOptionMD

Removed this, as it was deprecated in 24.11 and was intended to be
removed in 25.05. Better late than never.

doc/release-notes/rl-2511.section.md

@@ -297,6 +297,8 @@
 - `reaction` has been updated to version 2, which includes some breaking changes.
   For more information, [check the release article](https://blog.ppom.me/en-reaction-v2).
 
+- `lib.options.mkPackageOptionMD` has been removed, following its deprecation in NixOS 24.11. Use `lib.options.mkPackageOption` instead.
+
 - The `buildPythonPackage` and `buildPythonApplication` functions now require
   an explicit `format` attribute. Previously the default format used setuptools
   and called `setup.py` from the source tree, which is deprecated.

lib/default.nix

@@ -505,7 +505,6 @@ let
         unknownModule
         mkOption
         mkPackageOption
-        mkPackageOptionMD
         literalMD
         ;
       inherit (self.types)

lib/options.nix

@@ -344,13 +344,6 @@ rec {
       }
     );
 
-  /**
-    Deprecated alias of mkPackageOption, to be removed in 25.05.
-
-    Previously used to create options with markdown documentation, which is no longer required.
-  */
-  mkPackageOptionMD = lib.warn "mkPackageOptionMD is deprecated and will be removed in 25.05; please use mkPackageOption." mkPackageOption;
-
   /**
     This option accepts arbitrary definitions, but it does not produce an option value.
 

nixos/doc/manual/release-notes/rl-2411.section.md

@@ -1066,7 +1066,7 @@ Module System:
 
 ### Deprecations {#sec-release-24.11-lib-deprecations}
 
-- [`lib.options.mkPackageOptionMD`](https://nixos.org/manual/nixpkgs/unstable#function-library-lib.options.mkPackageOptionMD) is now obsolete; use the identical [`lib.options.mkPackageOption`](https://nixos.org/manual/nixpkgs/unstable#function-library-lib.options.mkPackageOption) instead.
+- `lib.options.mkPackageOptionMD` is now obsolete; use the identical [`lib.options.mkPackageOption`](https://nixos.org/manual/nixpkgs/unstable#function-library-lib.options.mkPackageOption) instead.
 - `lib.misc.mapAttrsFlatten` is now formally deprecated and will be removed in future releases; use the identical [`lib.attrsets.mapAttrsToList`](https://nixos.org/manual/nixpkgs/unstable#function-library-lib.attrsets.mapAttrsToList) instead.
 - `lib.isInOldestRelease`: Renamed to [`oldestSupportedReleaseIsAtLeast`](https://nixos.org/manual/nixpkgs/unstable/#function-library-lib.trivial.oldestSupportedReleaseIsAtLeast) and deprecated.