message: Remove unused Vectorize constructor (NFC)
  Fix gcc warning.
diff: @@ -599,8 +599,6 @@ namespace {
  struct Vectorize : public FunctionPass<Vectorize> {
  Vectorize();
  Vectorize(ArrayRef<int64_t> virtualVectorSize);
  - Vectorize(ArrayRef<int64_t> virtualVectorSize,
  - ArrayRef<int64_t> fastestVaryingPattern);
  void runOnFunction() override;
  // The virtual vector size that we vectorize to.
  @@ -628,15 +626,6 @@ Vectorize::Vectorize(ArrayRef<int64_t> virtualVectorSize) : Vectorize() {
  }
  }
  -Vectorize::Vectorize(ArrayRef<int64_t> virtualVectorSize,
  - ArrayRef<int64_t> fastestVaryingPattern)
  - : Vectorize(virtualVectorSize) {
  - if (!fastestVaryingPattern.empty()) {
  - this->fastestVaryingPattern.assign(fastestVaryingPattern.begin(),
  - fastestVaryingPattern.end());
  - }
  -}
  -
  /////// TODO(ntv): Hoist to a VectorizationStrategy.cpp when appropriate.
  /////////
  namespace {
  