We now use the public_comments accessor of the IDInternal object

so we don't need to import DocumentComment.
 - Legacy-Id: 834

Author: fenner

ietf/idtracker/feeds.py

@@ -2,7 +2,7 @@
 
 from django.contrib.syndication.feeds import Feed, FeedDoesNotExist
 from django.utils.feedgenerator import Atom1Feed
-from ietf.idtracker.models import IDInternal, DocumentComment
+from ietf.idtracker.models import IDInternal
 import datetime
 import re