fix linter

selfdrive/debug/cycle_alerts.py

@@ -1,10 +1,12 @@
 #!/usr/bin/env python3
+# flake8: noqa
+# pylint: skip-file
+# type: ignore
+
 import argparse
 import time
-import zmq
 
 import cereal.messaging as messaging
-from cereal.services import service_list
 from selfdrive.controls.lib.events import EVENTS, Alert
 
 def now_millis(): return time.time() * 1000