Revert "stdenv: set NIX_DONT_SET_RPATH_FOR_TARGET on Darwin" (#355667)

        export NIX_NO_SELF_RPATH=1

      '' + lib.optionalString (hostPlatform.isDarwin && hostPlatform.isMacOS) ''

        export MACOSX_DEPLOYMENT_TARGET=${hostPlatform.darwinMinVersion}

      '' + lib.optionalString targetPlatform.isDarwin ''

        export NIX_DONT_SET_RPATH_FOR_TARGET=1

      '';

      ''

      # TODO this should be uncommented, but it causes stupid mass rebuilds due to

      # `pkgsCross.*.buildPackages` not being the same, resulting in cross-compiling

      # for a target rebuilding all of `nativeBuildInputs` for that target.

      #

      # I think the best solution would just be to fixup linux RPATHs so we don't

      # need to set `-rpath` anywhere.

      # + lib.optionalString targetPlatform.isDarwin ''

      #   export NIX_DONT_SET_RPATH_FOR_TARGET=1

      # ''

      ;

      inherit initialPath shell

        defaultNativeBuildInputs defaultBuildInputs;