diff --git a/product/ERP5/interfaces/divergence_solver.py b/product/ERP5/interfaces/divergence_solver.py
deleted file mode 100644
index 297283f378a05bb5f35841d1d418d604de822c2c..0000000000000000000000000000000000000000
--- a/product/ERP5/interfaces/divergence_solver.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# -*- coding: utf-8 -*-
-##############################################################################
-#
-# Copyright (c) 2009 Nexedi SARL and Contributors. All Rights Reserved.
-#                    Łukasz Nowak <luke@nexedi.com>
-#
-# WARNING: This program as such is intended to be used by professional
-# programmers who take the whole responsibility of assessing all potential
-# consequences resulting from its eventual inadequacies and bugs
-# End users who are looking for a ready-to-use solution with commercial
-# guarantees and support are strongly advised to contract a Free Software
-# Service Company
-#
-# This program is Free Software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# 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 General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-#
-##############################################################################
-"""
-Products.ERP5.interfaces.divergence_solver
-"""
-
-from zope.interface import Interface
-
-class IDivergenceSolver(Interface):
-  """Solves divergence between delivery line and related simulation movements"""
-
-  def solve(decision_list):
-    """Solves divergences on self according to decision_list
-
-    decision_list is list of instances of DivergenceSolutionDecision class
-    """