ERP5Workflow: remove unused dependencies

product/ERP5/ERP5Site.py

@@ -25,6 +25,7 @@ from Products.SiteErrorLog.SiteErrorLog import manage_addErrorLog
 from ZPublisher import BeforeTraverse
 from ZPublisher.BaseRequest import RequestContainer
 from AccessControl import ClassSecurityInfo
+
 from Products.CMFDefault.Portal import CMFSite
 from Products.ERP5Type import Permissions
 from Products.ERP5Type.Core.Folder import FolderMixIn
@@ -46,11 +47,10 @@ import warnings
 import transaction
 from App.config import getConfiguration
 from Products.ERP5Workflow.Tool.WorkflowTool import WorkflowTool
-from zope.lifecycleevent import ObjectCopiedEvent
-from OFS.event import ObjectClonedEvent
-from zope.event import notify
+
 MARKER = []
 
+
 # Site Creation DTML
 manage_addERP5SiteFormDtml = Globals.HTMLFile('dtml/addERP5Site', globals())