linux-doc: remove Python overrides

The build used to fail with

    Found duplicated packages in closure for dependency 'docutils':
      docutils 0.19 (/nix/store/y1ifaaf1pfh8pz4qfqvc5gdk3a7s1563-python3.10-docutils-0.19/lib/python3.10/site-packages)
      docutils 0.16 (/nix/store/f2rd8fjdjzy0kpqd2x0gw5lwbxwmzzm6-python3.10-docutils-0.16/lib/python3.10/site-packages)

1 files changed, 2 insertions, 31 deletions

diff --git a/pkgs/os-specific/linux/kernel/htmldocs.nix b/pkgs/os-specific/linux/kernel/htmldocs.nix
index 4e42288aff8..ef2abefb377 100644
--- a/pkgs/os-specific/linux/kernel/htmldocs.nix
+++ b/pkgs/os-specific/linux/kernel/htmldocs.nix
@@ -10,35 +10,6 @@
 , which
 }:
 
-let
-  py = python3.override {
-    packageOverrides = final: prev: rec {
-      docutils_old = prev.docutils.overridePythonAttrs (oldAttrs: rec {
-        version = "0.16";
-        src = final.fetchPypi {
-          pname = "docutils";
-          inherit version;
-          sha256 = "sha256-wt46YOnn0Hvia38rAMoDCcIH4GwQD5zCqUkx/HWkePw=";
-        };
-      });
-
-      sphinx = (prev.sphinx.override rec {
-        alabaster = prev.alabaster.override { inherit pygments; };
-        docutils = docutils_old;
-        pygments = prev.pygments.override { docutils = docutils_old; };
-      }).overridePythonAttrs {
-        # fails due to duplicated packages
-        doCheck = false;
-      };
-
-      sphinx-rtd-theme = prev.sphinx-rtd-theme.override {
-        inherit sphinx;
-        docutils = docutils_old;
-      };
-    };
-  };
-in
-
 stdenv.mkDerivation {
   pname = "linux-kernel-latest-htmldocs";
 
@@ -58,8 +29,8 @@ stdenv.mkDerivation {
     graphviz
     imagemagick
     perl
-    py.pkgs.sphinx
-    py.pkgs.sphinx-rtd-theme
+    python3.pkgs.sphinx
+    python3.pkgs.sphinx-rtd-theme
     which
   ];