[Profile] Remove __llvm_profile_has_correlation() (#71996)

As discussed in
https://github.com/llvm/llvm-project/pull/70856#issuecomment-1791465183
and
https://github.com/llvm/llvm-project/pull/70856#issuecomment-1806281746,
it's better not to do runtime check for VARIANT_MASK_DBG_CORRELATE bit
in __llvm_profile_raw_version when deciding if profile data/name
sections should be dropped or not.