Revert "[CMake] Ensure `CLANG_RESOURCE_DIR` is respected."

This reverts commit 39aa0f5c434b463520ac39a8dbe933ee8c4c5ea7.

This is missing the new GetClangResourceDir.cmake that is being included,
so all clang builds are broken.

GitOrigin-RevId: d072d110227d118284cb4484814567782ab50186
1 file changed