Remove empty directories.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199983 91177308-0d34-0410-b5e6-96231b3b80d8
Remove empty directories.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199987 91177308-0d34-0410-b5e6-96231b3b80d8