Remove unnecessary patch in test_local_no_registered_event_listener

Author: iMicknl

tests/test_client.py

@@ -1121,10 +1121,7 @@ async def test_local_no_registered_event_listener(
             status=400,
         )
 
-        with (
-            patch.object(aiohttp.ClientSession, "post", return_value=resp),
-            pytest.raises(exceptions.NoRegisteredEventListenerError),
-        ):
+        with pytest.raises(exceptions.NoRegisteredEventListenerError):
             await check_response(resp)
 
     @pytest.mark.asyncio