--- a/cubicweb/pyramid/session.py	Fri May 10 15:58:01 2019 +0200
+++ b/cubicweb/pyramid/session.py	Fri May 10 11:42:24 2019 +0200
@@ -84,7 +84,6 @@
    redis) when using redis as backend.
 """
 
-import warnings
 import logging
 from contextlib import contextmanager