fix pyflakes warnings from recent b32decode change

src/allmydata/client.py

@@ -1,6 +1,5 @@
 
 import os, sha, stat, time, re
-from base64 import b32decode
 from foolscap import Referenceable, SturdyRef
 from zope.interface import implements
 from allmydata.interfaces import RIClient

src/allmydata/test/test_system.py

@@ -1,5 +1,5 @@
 
-from base64 import b32decode, b32encode
+from base64 import b32encode
 import os
 from cStringIO import StringIO
 from twisted.trial import unittest
@@ -7,7 +7,7 @@ from twisted.internet import defer, reactor
 from twisted.application import service
 from allmydata import client, uri, download, upload
 from allmydata.introducer_and_vdrive import IntroducerAndVdrive
-from allmydata.util import idlib, fileutil, testutil
+from allmydata.util import fileutil, testutil
 from allmydata.scripts import runner
 from allmydata.interfaces import IDirectoryNode, IFileNode, IFileURI
 from allmydata.dirnode import NotMutableError

src/allmydata/webish.py

@@ -1,5 +1,5 @@
 
-from base64 import b32decode, b32encode
+from base64 import b32encode
 import os.path
 from twisted.application import service, strports
 from twisted.web import static, resource, server, html, http
@@ -7,7 +7,7 @@ from twisted.python import util, log
 from twisted.internet import defer
 from nevow import inevow, rend, loaders, appserver, url, tags as T
 from nevow.static import File as nevow_File # TODO: merge with static.File?
-from allmydata.util import idlib, fileutil
+from allmydata.util import fileutil
 import simplejson
 from allmydata.interfaces import IDownloadTarget, IDirectoryNode, IFileNode
 from allmydata import upload, download