[llvm] [VPlan] Only store RecurKind + FastMathFlags in VPReductionRecipe. NFCI (PR #131300)

[Florian Hahn via llvm-commits]

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

LGTM, as long as it doesn't complicate https://github.com/llvm/llvm-project/pull/113903



https://github.com/llvm/llvm-project/pull/131300