fix linter

pd0wm · pd0wm · commit 1ba646773e4d · 2019-12-03T07:56:57.000-08:00
diff --git a/messaging/tests/test_poller.py b/messaging/tests/test_poller.py
@@ -1,5 +1,4 @@
 import unittest
-import os
 import time
 import cereal.messaging as messaging
 

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,4 @@`
`1`	`1`	`import unittest`
`2`		`-import os`
`3`	`2`	`import time`
`4`	`3`	`import cereal.messaging as messaging`
`5`	`4`