Issue #28544: Fix inefficient call to _PyObject_CallMethodId()

"()" format string creates an empty list of argument but requires extra work to
parse the format string.

Modules/_asynciomodule.c

@@ -152,7 +152,7 @@ future_init(FutureObj *fut, PyObject *loop)
     Py_CLEAR(fut->fut_loop);
     fut->fut_loop = loop;
 
-    res = _PyObject_CallMethodId(fut->fut_loop, &PyId_get_debug, "()", NULL);
+    res = _PyObject_CallMethodId(fut->fut_loop, &PyId_get_debug, NULL);
     if (res == NULL) {
         return -1;
     }