Revert "Add VFS support for sanitizers' blacklist"

Fix tests on Windows for now.

This reverts commit 96ac97a4213287003f08636d0c372b3f71e9cfca.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@373999 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed