message: don't set vector type
diff: @@ -324,10 +324,6 @@ public:
  offset += num_paths;
  }
  ListVector::SetListSize(result, offset);
  -
  - if (input_vector.GetVectorType() == VectorType::CONSTANT_VECTOR) {
  - result.SetVectorType(VectorType::CONSTANT_VECTOR);
  - }
  }
  private:
  