zope4: Remove empty file accidentally committed in d303ca49.

product/ERP5Type/XMLExportImport/OFSXMLExportImport.py

-##############################################################################
-#
-# Copyright (c) 2001,2002 Zope Foundation and Contributors.
-# Copyright (c) 2002,2005 Nexedi SARL and Contributors. All Rights Reserved.
-#
-# This software is subject to the provisions of the Zope Public License,
-# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
-# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
-# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
-# FOR A PARTICULAR PURPOSE
-#
-##############################################################################