remove fp32 attr set_ops, modify conv_op log

paddle/fluid/operators/conv_mkldnn_op.cc

@@ -768,7 +768,6 @@ class ConvMKLDNNOpKernel : public paddle::framework::OpKernel<T> {
       // the scale parameter. It is assumed that when fuse_residual_conn is true, the
       // Output tensor contains the data coming from residual connection. The
       // result of this post_op is: Output = scale * Output + Conv_Out.
-      conv_attr.set_output_scales(0, {1.0f});
       if (fuse_residual_conn) {
         post_operations.append_sum(1.0f);
       }

paddle/fluid/operators/conv_op.cc

@@ -129,7 +129,8 @@ void Conv2DOpMaker::Make() {
            "to the number of output channels. Only used with MKL-DNN.")
       .AsDispensable();
   AddInput("Scale_in",
-           "(Tensor) Scale_in to be used for int8 input data. Only used with INT8.")
+           "(Tensor) Scale_in to be used for int8 input data."
+           "Only used with INT8.")
       .AsDispensable();
   AddInput("Scale_in_eltwise",
            "(Tensor) Scale_in_eltwise to be used for int8 eltwise input data."