[clang] Clang: Drop float support from __builtin_elementwise_max (PR #180885)

[YunQiang Su via cfe-commits]

wzssyqa wrote:

> Marking as requested changes because it's not clear why these changes are being proposed.

This topic was talked in: https://github.com/llvm/llvm-project/pull/113133: Should we add `nsz` top `__builtin_elementwise_min`.

@nikic suggested that we should remove float support from `__builtin_elementwise_min`.

https://github.com/llvm/llvm-project/pull/180885