[libc-commits] [libc] [reland][libc] Remove unnecessary `FPBits` functions and properties (PR #79128)

[Nick Desaulniers via libc-commits]

nickdesaulniers wrote:

hmm...quite a few follow ups to this commit.  The 32b arm build bots do take some time to provide feedback post submit, but it's important to wait to ensure they go back to green or don't go red in the first place.  If it's near the end of your workday, I suggest holding off on merging commits until the next workday morning (especially Friday afternoons). That gives plenty of time to follow up on build breakages that are found only through post submits.

My hope is that we can make the enable runtimes build more ubiquitous so that testing via cross compiling is so fast/easy, it's the default development workflow.

https://github.com/llvm/llvm-project/pull/79128