removed unnecessary changes.

src/onnx/onnx.cpp

@@ -483,7 +483,6 @@ struct onnx_parser
         {
             transb = parse_value(attributes.at("transB")).at<bool>();
         }
-
         std::vector<int64_t> perm = {1, 0};
         auto l1 = (transa) ? prog.add_instruction(op::transpose{perm}, args[0]) : args[0];
         auto l2 = (transb) ? prog.add_instruction(op::transpose{perm}, args[1]) : args[1];
@@ -505,9 +504,7 @@ struct onnx_parser
             }
         }
 
-        auto dot_res = prog.add_instruction(op::dot{alpha, beta}, l1, l2);
-
-        return dot_res;
+        return  prog.add_instruction(op::dot{alpha, beta}, l1, l2);
     }
 
     instruction_ref