remove a garbage that was committed mistakenly.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@31429 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/SimulationMovement.py

@@ -359,8 +359,6 @@ class SimulationMovement(Movement, PropertyRecordableMixin):
     else:
       return False
 
-  getDeliverable = isDeliverable
-
   # Simulation Dates - acquire target dates
   security.declareProtected( Permissions.AccessContentsInformation,
                              'getOrderStartDate')