message: refine the function is_scales_valid
diff: @@ -1635,12 +1635,7 @@ class MklQuantizedConv2DOp
  }
  bool is_scales_valid(std::vector<float> scales) {
  - for (size_t i = 0; i < scales.size(); i++) {
  - if (scales[i] != scales_[i]) {
  - return false;
  - }
  - }
  - return true;
  + return scales == scales_;
  }
  bool is_bias_const_;
  PersistentTensor cached_bias_data_ptensor_ GUARDED_BY(bias_cache_mu_);
  