[backend] fixed bugs

src/sysyc.cpp

@@ -96,13 +96,5 @@ int main(int argc, char **argv) {
     return EXIT_SUCCESS;
   }
 
-  // generate assembly
-  auto module = generator.get();
-  sysy::RISCv32CodeGen codegen(module);
-  string asmCode = codegen.code_gen();
-  if (argStopAfter == "asm") {
-    cout << asmCode << endl;
-    return EXIT_SUCCESS;
-  }
   return EXIT_SUCCESS;
 }