[llvm] [LV][NFC] Simplify initialization of MinProfitableTripCount (PR #113445)

[Florian Hahn via llvm-commits]

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

LGTM, thanks! There should be no need to handle the case where it is zero separately.

https://github.com/llvm/llvm-project/pull/113445