BusinessTemplate.py: remove unused modifications added during the developement.

product/ERP5/Document/BusinessTemplate.py

@@ -5862,10 +5862,6 @@ Business Template is a set of definitions, such as skins, portal types and categ
             bt_base_category_list.append(base_cat_id)
 
         for act_id in action_list:
-          if act_id is None:
-            return (1, self.Base_translateString(
-              "ERROR: An action has an empty id on portal_type ${id}",
-              mapping=dict(id=id)))
           action_id = id+' | '+act_id
           if action_id not in bt_action_list:
             bt_action_list.append(action_id)
@@ -5890,7 +5886,6 @@ Business Template is a set of definitions, such as skins, portal types and categ
       self.setTemplatePortalTypePropertySheetList(bt_property_sheet_list)
       self.setTemplatePortalTypeBaseCategoryList(bt_base_category_list)
       self.setTemplateActionPathList(bt_action_list)
-      return (0, "")
 
 
     def guessPortalTypes(self, **kw):