[llvm-branch-commits] [NFCI][metadata][clang] Use create{Unlikely, Likely}BranchWeights (PR #89467)

[Vitaly Buka via llvm-branch-commits]

https://github.com/vitalybuka created https://github.com/llvm/llvm-project/pull/89467

It does not look like particular value is inportant.
Howere, there is a comment., but the current implementation
of `create{Unlikely,Likely}BranchWeights` use the same value.

Follow up to #89464