diff --git a/openerp/workflow/common.py b/openerp/workflow/common.py
deleted file mode 100644
index fc29419721a..00000000000
--- a/openerp/workflow/common.py
+++ /dev/null
@@ -1,28 +0,0 @@
-# -*- coding: utf-8 -*-
-##############################################################################
-#    
-#    OpenERP, Open Source Management Solution
-#    Copyright (C) 2004-2009 Tiny SPRL (<http://tiny.be>).
-#
-#    This program is free software: you can redistribute it and/or modify
-#    it under the terms of the GNU Affero General Public License as
-#    published by the Free Software Foundation, either version 3 of the
-#    License, or (at your option) any later version.
-#
-#    This program is distributed in the hope that it will be useful,
-#    but WITHOUT ANY WARRANTY; without even the implied warranty of
-#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#    GNU Affero General Public License for more details.
-#
-#    You should have received a copy of the GNU Affero General Public License
-#    along with this program.  If not, see <http://www.gnu.org/licenses/>.     
-#
-##############################################################################
-
-class except_wkf(Exception):
-    def __init__(self, name, value):
-        self.name = name
-        self.value = value
-
-# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
-