Remove unused imports

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@29034 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Document.py

@@ -27,15 +27,12 @@
 #
 ##############################################################################
 
-import re, socket, sys
-from DateTime import DateTime
+import re, sys
 from operator import add
-from xmlrpclib import Fault
-from zLOG import LOG, INFO
+from zLOG import LOG
 from AccessControl import ClassSecurityInfo, getSecurityManager
 from AccessControl.SecurityManagement import newSecurityManager, setSecurityManager
 from Acquisition import aq_base
-from Globals import PersistentMapping
 from Globals import get_request
 from Products.CMFCore.utils import getToolByName, _checkPermission
 from Products.ERP5Type import Permissions, PropertySheet, Constraint, interfaces