[clang] [llvm] [X86][APX] Remove CF feature from APXF and Diamond Rapids (PR #153751)

[Shengchen Kan via cfe-commits]

KanRobert wrote:

Update description?

Due to it results in more losses than gains. -> Due to it results in more losses than gains w/o HWPGO.

https://github.com/llvm/llvm-project/pull/153751