hush pyflakes warning about code that got moved in the recent StallMixin refactoring

src/allmydata/test/test_client.py

@@ -2,7 +2,6 @@
 import os
 from twisted.trial import unittest
 from twisted.application import service
-from twisted.internet import reactor, defer
 from twisted.python import log
 
 import allmydata

src/allmydata/test/test_dirnode.py

@@ -8,7 +8,6 @@ from allmydata.interfaces import IURI, IClient, IMutableFileNode, \
 from allmydata.util import hashutil, testutil
 from allmydata.test.common import make_chk_file_uri, make_mutable_file_uri, \
      FakeDirectoryNode, create_chk_filenode
-from twisted.internet import defer, reactor
 
 # to test dirnode.py, we want to construct a tree of real DirectoryNodes that
 # contain pointers to fake files. We start with a fake MutableFileNode that

src/allmydata/test/test_system.py

@@ -3,7 +3,7 @@ from base64 import b32encode
 import os, sys, time, re, simplejson
 from cStringIO import StringIO
 from twisted.trial import unittest
-from twisted.internet import defer, reactor
+from twisted.internet import defer
 from twisted.internet import threads # CLI tests use deferToThread
 from twisted.internet.error import ConnectionDone, ConnectionLost
 from twisted.application import service