Remove dead code.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188802 91177308-0d34-0410-b5e6-96231b3b80d8
[LSan] Add support for building standalone LSan runtime to Make build (clang part)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188805 91177308-0d34-0410-b5e6-96231b3b80d8