[IMP] remove copyright from code file as it's in the manifest

easy_my_coop_dividend/models/dividend.py

@@ -1,23 +1,5 @@
 # -*- coding: utf-8 -*-
-##############################################################################
-#
-#    Copyright (C) 2013-2018 Open Architects Consulting SPRL.
-#    Copyright (C) 2013-2018 Coop IT Easy SCRLfs.
-#
-#    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/>.
-#
-##############################################################################
+
 from __future__ import division
 from datetime import datetime
 import openerp.addons.decimal_precision as dp