[llvm-branch-commits] [UBSAN][HWASAN] Remove redundant flags (PR #87709)

[Vitaly Buka via llvm-branch-commits]

https://github.com/vitalybuka created https://github.com/llvm/llvm-project/pull/87709

Presense of `cutoff-hot` or `random-skip-rate`
should be enough to trigger optimization.