remove proxy role that should not be needed

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@33126 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/NotificationTool_getDocumentValue.xml

@@ -129,9 +129,7 @@ return notification_message\n
         <item>
             <key> <string>_proxy_roles</string> </key>
             <value>
-              <tuple>
-                <string>Assignor</string>
-              </tuple>
+              <tuple/>
             </value>
         </item>
         <item>

bt5/erp5_base/bt/revision

-678
\ No newline at end of file
+680
\ No newline at end of file