business template are not variated

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@12471 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/BusinessTemplate.py

@@ -3689,9 +3689,6 @@ class BusinessTemplate(XMLObject):
     security = ClassSecurityInfo()
     security.declareObjectProtected(Permissions.AccessContentsInformation)
 
-    # Declarative interfaces
-    __implements__ = ( Interface.Variated, )
-
     # Declarative properties
     property_sheets = ( PropertySheet.Base
                       , PropertySheet.XMLObject