message: Fix memory leak in MklAddN
diff: @@ -185,7 +185,6 @@ class MklAddNOp : public OpKernel {
  GetMklShape(ctx, src_idx, &src_mkl_shape);
  memory::desc md({}, memory::data_type::undef,
  memory::format_tag::undef);
  - src = MklDnnData<T>(&cpu_engine);
  const Tensor& src_tensor = MklGetInput(ctx, src_idx);
  if (src_mkl_shape.IsMklTensor()) {
  