[SLP][NFC]Remove unused variables, NFC.

Author: alexey-bataev

llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp

@@ -7633,9 +7633,6 @@ BoUpSLP::getEntryCost(const TreeEntry *E, ArrayRef<Value *> VectorizedVals,
     SmallVector<const TreeEntry *> Entries;
     // Check for gathered extracts.
     ExtractShuffle = tryToGatherSingleRegisterExtractElements(GatheredScalars, ExtractMask);
-    SmallVector<Value *> IgnoredVals;
-    if (UserIgnoreList)
-      IgnoredVals.assign(UserIgnoreList->begin(), UserIgnoreList->end());
 
     bool Resized = false;
     if (Value *VecBase = Estimator.adjustExtracts(
@@ -10184,9 +10181,6 @@ ResTy BoUpSLP::processBuildVector(const TreeEntry *E, Args &...Params) {
     // Check for gathered extracts.
     ExtractShuffle =
         tryToGatherSingleRegisterExtractElements(GatheredScalars, ExtractMask);
-    SmallVector<Value *> IgnoredVals;
-    if (UserIgnoreList)
-      IgnoredVals.assign(UserIgnoreList->begin(), UserIgnoreList->end());
     bool Resized = false;
     if (Value *VecBase = ShuffleBuilder.adjustExtracts(E, ExtractMask))
       if (auto *VecBaseTy = dyn_cast<FixedVectorType>(VecBase->getType()))