--- a/contrib/perf.py	Wed Jan 10 19:08:51 2018 -0800
+++ b/contrib/perf.py	Wed Jan 10 21:09:57 2018 -0800
@@ -27,7 +27,6 @@
 import sys
 import threading
 import time
-import util.queue
 from mercurial import (
     changegroup,
     cmdutil,