[llvm] [VPlan] Strip dead code in replaceSymbolicStrides (NFC) (PR #164296)

[Florian Hahn via llvm-commits]

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@@ -2909,13 +2909,6 @@ void VPlanTransforms::canonicalizeEVLLoops(VPlan &Plan) {
 void VPlanTransforms::replaceSymbolicStrides(
     VPlan &Plan, PredicatedScalarEvolution &PSE,
     const DenseMap<Value *, const SCEV *> &StridesMap) {
-  // Replace VPValues for known constant strides guaranteed by predicate scalar
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fhahn wrote:

The comment is the explanation for the check below, which I think should be kept to ensure we only replace strides we know will be guarded by runtime checks

https://github.com/llvm/llvm-project/pull/164296