[clang] [compiler-rt] [llvm] [FMV][AArch64] Remove features which expose non exploitable runtime behavior. (PR #114387)

[Pavel Iliin via cfe-commits]

https://github.com/ilinpv approved this pull request.

I wonder if we can get any cases of using asm msr in function version for features in question? Anyway LGTM to be aligned with specification.

https://github.com/llvm/llvm-project/pull/114387