patches: drop patches for OFS.Item.__repr__

No longer needed on Zope4, from commit dc5b9292f (Merge pull request
 387 from zopefoundation/re-379-revert-repr, 2018-10-26)

product/ERP5Type/patches/OFSFile.py

 from App.special_dtml import DTMLFile
 from OFS.Image import File
-from OFS.SimpleItem import Item
 from Products.ERP5Type import _dtmldir
 
 
-# restore __repr__ after persistent > 4.4
-# https://github.com/zopefoundation/Zope/issues/379
-File.__repr__ = Item.__repr__
-
 def _setData(self, data):
   """
   Originally from Document class. Added because it is used by

product/ERP5Type/patches/OFSFolder.py

@@ -15,7 +15,6 @@
 from AccessControl import ClassSecurityInfo
 from Products.ERP5Type.Globals import InitializeClass
 from OFS.Folder import Folder
-from OFS.SimpleItem import Item
 from Products.ERP5Type import Permissions
 
 """
@@ -73,7 +72,3 @@ security.declareProtected(Permissions.ManagePortal, 'isERP5SitePresent')
 security.declarePublic('zope_quick_start')
 Folder.security = security
 InitializeClass(Folder)
-
-# restore __repr__ after persistent > 4.4
-# https://github.com/zopefoundation/Zope/issues/379
-Folder.__repr__ = Item.__repr__