diff --git a/src/sugar/datastore/datastore.py b/src/sugar/datastore/datastore.py
index f6df214e..ed2e6a59 100644
--- a/src/sugar/datastore/datastore.py
+++ b/src/sugar/datastore/datastore.py
@@ -27,8 +27,6 @@ import os
 import gobject
 
 from sugar.datastore import dbus_helpers
-from sugar.bundle.contentbundle import ContentBundle
-from sugar.bundle.activitybundle import ActivityBundle
 from sugar import mime
 
 class DSMetadata(gobject.GObject):
@@ -118,16 +116,6 @@ class DSObject(object):
 
     file_path = property(get_file_path, set_file_path)
 
-    def is_activity_bundle(self):
-        return self.metadata['mime_type'] in \
-               [ActivityBundle.MIME_TYPE, ActivityBundle.DEPRECATED_MIME_TYPE]
-
-    def is_content_bundle(self):
-        return self.metadata['mime_type'] == ContentBundle.MIME_TYPE
-
-    def is_bundle(self):
-        return self.is_activity_bundle() or self.is_content_bundle()
-
     def destroy(self):
         if self._destroyed:
             logging.warning('This DSObject has already been destroyed!.')