tsan: remove shutdown code
tsan runtime shutdown is problematic for 2 reasons:
1. others crash during shutdown
2. we have to override user exit status (don't know it and can't return from atexit handler)


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@156991 91177308-0d34-0410-b5e6-96231b3b80d8
11 files changed