[llvm] [VPlan] Don't convert widen recipes to VP intrinsics in EVL transform (PR #127180)

[Florian Hahn via llvm-commits]

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

Very happy to see this cleanup! 

Code changes look good, as long as everyone involved with EVL vectorization is happy with the direction

https://github.com/llvm/llvm-project/pull/127180