This reverts commit r238838, r238844 and r238888.

Trying to bring back a windows bot:

http://lab.llvm.org:8011/builders/clang-x86-win2008-selfhost/builds/1224/steps/ninja%20check%202/logs/FAIL%3A%20LLVM%3A%3AELF_O32_PIC_relocations.s

llvm-svn: 238903