[asan] Fix Win/Mac build.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@174376 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Delete the code related to static runtime on OS X.
Nuke lib/interception/mach_override.



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@174383 91177308-0d34-0410-b5e6-96231b3b80d8