We don't need the destination base category

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@2582 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/PropertySheet/Assignment.py

@@ -57,4 +57,4 @@ class Assignment(Path):
           'mode'        : 'w' },
   )
 
-  _categories = ('activity', 'function', 'grade', 'site', 'role', 'skill', 'destination', 'group', 'subordination',)
+  _categories = ('activity', 'function', 'grade', 'site', 'role', 'skill', 'group', 'subordination',)