[InstCombine] Address review comments. NFC.

Author: dtcxzyw

llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp

@@ -833,11 +833,9 @@ Instruction *InstCombinerImpl::foldGEPICmp(GEPOperator *GEPLHS, Value *RHS,
       if (NumDifferences == 0)   // SAME GEP?
         return replaceInstUsesWith(I, // No comparison is needed here.
           ConstantInt::get(I.getType(), ICmpInst::isTrueWhenEqual(Cond)));
-      // If two GEPs only differ by an index/the base pointer, compare them.
+      // If two GEPs only differ by an index, compare them.
       // Note that nowrap flags are always needed when comparing two indices.
-      else if (NumDifferences == 1 &&
-               (DiffOperand == 0 ? CanFold(NW)
-                                 : NW != GEPNoWrapFlags::none())) {
+      else if (NumDifferences == 1 && NW != GEPNoWrapFlags::none()) {
         Value *LHSV = GEPLHS->getOperand(DiffOperand);
         Value *RHSV = GEPRHS->getOperand(DiffOperand);
         return NewICmp(NW, LHSV, RHSV);