This reverts commit r224668 and r224667.

r224667 broke bootstrap on Fedora 20 X86_64 (at least).

See pr22006 for the details.

r224668 depends on r224667.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@224770 91177308-0d34-0410-b5e6-96231b3b80d8