Remove all useless scapy WARNING: on import from scapy
Just delay a whee bit in SSH agent before closing channel/session.
For some reason, there seems to be unread data in the tcp queue.
When closed quickly ends up RST'ing the tcp/onos-karaf server side session.
This causes a bogus "Connection reset by peer" exception in the ONOS log for every cli session established to ONOS from cord-tester

Change-Id: I954429b7d132d89b0f0515b267468bf4127ac127
diff --git a/src/test/utils/Cluster.py b/src/test/utils/Cluster.py
index c42ea64..31b6bbb 100644
--- a/src/test/utils/Cluster.py
+++ b/src/test/utils/Cluster.py
@@ -23,6 +23,8 @@
 from socket import socket
 import pexpect
 from Stats import Stats
+import logging
+logging.getLogger('scapy.runtime').setLevel(logging.ERROR)
 from scapy.all import *
 from OnosFlowCtrl import OnosFlowCtrl
 from nose.twistedtools import reactor, deferred