[llvm] [LoopVectorize] Remove redundant code in emitSCEVChecks (PR #111132)

[Florian Hahn via llvm-commits]

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

LGTM, thanks! This should never be the first RT check in the current version.

https://github.com/llvm/llvm-project/pull/111132