Argument simulation_tool is useless

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@3338 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/DeliverySolver/DeliverySolver.py

@@ -32,7 +32,7 @@ class DeliverySolver:
     into values of simulation movements / delivery.
   """
 
-  def __init__(self, simulation_tool, **kw):
+  def __init__(self, simulation_tool=None, **kw):
     """
       Creates
     """