message: minor chage per code review suggestion
diff: @@ -59,8 +59,6 @@ namespace tensorflow {
  // MKL operation, and did not go through a conversion to a standard
  // Tensorflow tensor.
  -typedef enum { W = 0, H = 1, C = 2, N = 3 } MklDims;
  -
  // The dimensions order that MKL-DNN internally uses for 2D activations
  // [Batch, Channel, Height, Width] and
  // for 2D filters [Out_Channel, In_Channel, Height, Width].
  @@ -681,22 +679,6 @@ inline void GetStridesFromSizes(TensorFormat data_format, size_t* strides,
  }
  }
  -inline int32 GetMklTensorDimIndex(char dimension) {
  - switch (dimension) {
  - case 'N':
  - return MklDims::N;
  - case 'C':
  - return MklDims::C;
  - case 'H':
  - return MklDims::H;
  - case 'W':
  - return MklDims::W;
  - default:
  - LOG(FATAL) << "Invalid dimension: " << dimension;
  - return -1; // Avoid compiler warning about missing return value
  - }
  -}
  -
  inline void CopyMklTensorInToOut(OpKernelContext* context, int idx_in,
  int idx_out) {
  int num_inputs = context->num_inputs();
  @@ -1311,9 +1293,9 @@ class MklDnnData {
  return false;
  }
  - /// TODO: this is a faster path with reorder primitive cache compared with
  - /// CheckReorderToOpMem(..., std::vector<primitive>* net), will remove
  - /// slow path in the future
  + /// This is a faster path with reorder primitive cache compared with
  + /// CheckReorderToOpMem(..., std::vector<primitive>* net).
  + /// TODO(gzmkl): Remove the slower path.
  inline bool CheckReorderToOpMem(const memory::primitive_desc& op_pd) {
  CHECK_NOTNULL(user_memory_);
  if (IsReorderNeeded(op_pd)) {
  