[libcxx-commits] [libcxx] [libc++] Remove assertions from <string_view> that are unreachable (PR #148598)

[Konstantin Varlamov via libcxx-commits]

https://github.com/var-const requested changes to this pull request.

Let's figure out what to do about the C++11 mode (otherwise LGTM).

https://github.com/llvm/llvm-project/pull/148598