[Clang][OpenMP] Reapply "Memory leaks in OpenMP when affinity is disabled" (#226292) (#226294)

The previous version was applying a compiler flag to the smoke test
that would result in an unrunnable binary on non-ARM platforms. The
intention is for ASAN on ARM to run, and we get that by just not
specifying any flags and relying on the test system to include this
platform.

GitOrigin-RevId: 92289bdbced90ccc9f63da0c7fdaa71879c70964