message: Remove the dependency of cudnn_disable_conv_1x1_optimization flag of filter with the same size as input shape.
diff: @@ -598,8 +598,7 @@ class Conv2DSlowBackpropFilterOp : public OpKernel {
  ", n=", n, ", k=", k));
  }
  return;
  - } else if (!cudnn_disable_conv_1x1_optimization_ &&
  - dims.spatial_dims[0].filter_size ==
  + } else if (dims.spatial_dims[0].filter_size ==
  dims.spatial_dims[0].input_size &&
  dims.spatial_dims[1].filter_size ==
  dims.spatial_dims[1].input_size &&
  