[libcxx] [llvm] [libcxx] Remove ASan container overflow checks for SSO strings (PR #194208)

[Nikolas Klauser via llvm-commits]

https://github.com/philnik777 requested changes to this pull request.

Basically LGTM. Could you mention in the commit message that the annotations are fundamentally not sound, assuming you agree with my reasoning?

https://github.com/llvm/llvm-project/pull/194208