Revert "tsan: new runtime (v3)"

Summary:
This reverts commit ac95b8d9.
There is a number of bot failures:
http://45.33.8.238/mac/38755/step_4.txt
https://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake/38135/consoleFull#-148886289949ba4694-19c4-4d7e-bec5-911270d8a58c

Reviewers: vitalybuka, melver

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