Remove empty dir.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190948 91177308-0d34-0410-b5e6-96231b3b80d8
Remove empty dir.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190952 91177308-0d34-0410-b5e6-96231b3b80d8