Remove unused imports.

test/lib/xmpp_mocks.py

@@ -7,7 +7,6 @@ import threading, time
 from mock import Mock
 
 from common.xmpp import idlequeue
-from common.xmpp.plugin import PlugIn
 
 IDLEQUEUE_INTERVAL = 0.2 # polling interval. 200ms is used in Gajim as default
 IDLEMOCK_TIMEOUT = 30 # how long we wait for an event

test/test_roster.py

@@ -9,7 +9,6 @@ from mock import Mock, expectParams
 from gajim_mocks import *
 
 from common import gajim
-from common import zeroconf
 import roster_window
 
 gajim.get_jid_from_account = lambda acc: 'myjid@' + acc