[autotest] avoid chromite cros_logging module usage

Chromite uses cros_logging for some additional helpers & log levels,
none of which are used by autotest.  Its only using the module for
standard logging APIs, so switch over to logging directly.

BUG=chromium:1049711
TEST=CQ passes

Change-Id: If015d3fecb378536dfa4c848354e59af9822035e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/2042358
Reviewed-by: Derek Beckett <[email protected]>
Tested-by: Mike Frysinger <[email protected]>
Commit-Queue: Mike Frysinger <[email protected]>
diff --git a/site_utils/pubsub_utils.py b/site_utils/pubsub_utils.py
index 6d7670b..8a3a2f9 100755
--- a/site_utils/pubsub_utils.py
+++ b/site_utils/pubsub_utils.py
@@ -10,13 +10,13 @@
 
 from __future__ import print_function
 
+import logging
 import os
 
 from apiclient import discovery
 from apiclient import errors
 from oauth2client.client import ApplicationDefaultCredentialsError
 from oauth2client.client import GoogleCredentials
-from chromite.lib import cros_logging as logging
 
 # Cloud service
 PUBSUB_SERVICE_NAME = 'pubsub'