[libcxx-commits] [libcxx] [libc++] Refactor more __enable_ifs to the canonical style (PR #81457)

[Nikolas Klauser via libcxx-commits]

philnik777 wrote:

I'll land this once the CI is happy, since this should be an uncontroversial and very mechanical change.

https://github.com/llvm/llvm-project/pull/81457