More pyflakes cleanup.

sleekxmpp/xmlstream/handler/waiter.py

@@ -15,7 +15,6 @@ try:
 except ImportError:
     import Queue as queue
 
-from sleekxmpp.xmlstream import StanzaBase
 from sleekxmpp.xmlstream.handler.base import BaseHandler
 
 

sleekxmpp/xmlstream/scheduler.py

@@ -161,7 +161,7 @@ class Scheduler(object):
                             else:
                                 break
                         for task in cleanup:
-                            x = self.schedule.pop(self.schedule.index(task))
+                            self.schedule.pop(self.schedule.index(task))
                     else:
                         updated = True
                         self.schedule_lock.acquire()

sleekxmpp/xmlstream/stanzabase.py

@@ -14,7 +14,6 @@
 
 import copy
 import logging
-import sys
 import weakref
 from xml.etree import cElementTree as ET
 

sleekxmpp/xmlstream/xmlstream.py

@@ -24,7 +24,6 @@ import ssl
 import sys
 import threading
 import time
-import types
 import random
 import weakref
 try: