Fix pyflakes warnings.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>

src/allmydata/immutable/filenode.py

@@ -1,14 +1,14 @@
 
 import binascii
-import time
-now = time.time
+from time import time as now
+
 from zope.interface import implements
 from twisted.internet import defer
 
 from allmydata import uri
 from twisted.internet.interfaces import IConsumer
 from allmydata.interfaces import IImmutableFileNode, IUploadResults
-from allmydata.util import consumer, progress
+from allmydata.util import consumer
 from allmydata.check_results import CheckResults, CheckAndRepairResults
 from allmydata.util.dictutil import DictOfSets
 from allmydata.util.happinessutil import servers_of_happiness

src/allmydata/scripts/magic_folder_cli.py

@@ -17,8 +17,7 @@ from .cli import MakeDirectoryOptions, LnOptions, CreateAliasOptions
 import tahoe_mv
 from allmydata.util.encodingutil import argv_to_abspath, argv_to_unicode, to_str, \
     quote_local_unicode_path
-from allmydata.scripts.common_http import do_http, format_http_success, \
-    format_http_error, BadResponse
+from allmydata.scripts.common_http import do_http, BadResponse
 from allmydata.util import fileutil
 from allmydata.util import configutil
 from allmydata import uri

src/allmydata/web/magic_folder.py

@@ -2,10 +2,10 @@ import simplejson
 
 from twisted.web.server import UnsupportedMethod
 
-from nevow import rend, url, tags as T
+from nevow import rend
 from nevow.inevow import IRequest
 
-from allmydata.web.common import getxmlfile, get_arg, WebError
+from allmydata.web.common import get_arg, WebError
 
 
 class MagicFolderWebApi(rend.Page):