Remove version, because it is defined in Version now.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4662 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/PropertySheet/BusinessTemplate.py

@@ -131,11 +131,6 @@ class BusinessTemplate:
       'description' : 'A url on a webdav server which contains the business template source',
       'type'        : 'string',
       'mode'        : 'w', },
-    { 'id'          : 'version',
-      'description' : 'A version number',
-      'type'        : 'string',
-      'mode'        : 'w',
-      'default'     : '' },
     { 'id'          : 'change_log',
       'description' : 'A change log',
       'type'        : 'text',