Revert "Mmap interceptor new option, Write Exec runtime detector"

This reverts r327696 because it is failing on GreenDragon.

  http://green.lab.llvm.org/green/job/clang-stage1-configure-RA/43605/
  http://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-expensive/10957/

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@327719 91177308-0d34-0410-b5e6-96231b3b80d8
5 files changed