[LV] Drop redundant comment from createEdgeMask (NFC).

Follow-up to remove a redundant comment post-commit
#91897

Author: fhahn

llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

@@ -8012,9 +8012,6 @@ VPValue *VPRecipeBuilder::createEdgeMask(BasicBlock *Src, BasicBlock *Dst) {
     EdgeMask = Builder.createNot(EdgeMask, BI->getDebugLoc());
 
   if (SrcMask) { // Otherwise block in-mask is all-one, no need to AND.
-    // Use LogicalAnd as it does not propagate poison, i.e. does not introduce
-    // new UB if SrcMask is false and EdgeMask is poison. Using 'and' here
-    // introduces undefined behavior.
     // The bitwise 'And' of SrcMask and EdgeMask introduces new UB if SrcMask
     // is false and EdgeMask is poison. Avoid that by using 'LogicalAnd'
     // instead which generates 'select i1 SrcMask, i1 EdgeMask, i1 false'.