--- a/server/sources/__init__.py	Tue Jan 21 18:20:28 2014 +0100
+++ b/server/sources/__init__.py	Mon Jun 17 00:15:51 2013 +0200
@@ -464,12 +464,6 @@
         """mark entity as being modified, fulltext reindex if needed"""
         raise NotImplementedError(self)
 
-    def delete_info_multi(self, session, entities, uri):
-        """delete system information on deletion of a list of entities with the
-        same etype and belinging to the same source
-        """
-        raise NotImplementedError(self)
-
     def index_entity(self, session, entity):
         """create an operation to [re]index textual content of the given entity
         on commit