bash-completion: do not change pkgconfig behaviour, fixes #71662

Since 2.9 bash-completion hardcodes paths in pkgconfig file. We want to
be able to override certain paths, so this commit restores the original
behaviour.

https://github.com/NixOS/nixpkgs/issues/71662

pkgs/shells/bash/bash-completion/default.nix

@@ -24,6 +24,10 @@ stdenv.mkDerivation rec {
     bashInteractive
   ];
 
+  patches = [
+    ./0001-Revert-build-Do-cmake-pc-and-profile-variable-replac.patch
+  ];
+
   # ignore ip_addresses because it tries to touch network
   # ignore test_ls because impure logic
   checkPhase = ''