[llvm] [LV] Always emit branch weights for vector epilogue (PR #155437)

[Florian Hahn via llvm-commits]

https://github.com/fhahn commented:

Hm I am not sure why we had this restriction in the first place. Not sure if adding profile info when there was none before can mess things up in some way

https://github.com/llvm/llvm-project/pull/155437