remove redundant ref counting

Author: kumaraditya303

Modules/_asynciomodule.c

@@ -3000,11 +3000,7 @@ task_call_step_soon(asyncio_state *state, TaskObj *task, PyObject *arg)
         return -1;
     }
 
-    // Beware: An evil call_soon could alter task_context.
-    // See: https://github.com/python/cpython/issues/126080.
-    PyObject *task_context = Py_NewRef(task->task_context);
     int ret = call_soon(state, task->task_loop, cb, NULL, task_context);
-    Py_DECREF(task_context);
     Py_DECREF(cb);
     return ret;
 }