No longer run the publish notifier on toby.

Summary:
It hasn't worked in a long time, probably; the publish system has
changed a lot.  It tries to access
   http://www.khanacademy.org/api/v1/dev/publish_status
which doesn't exist as an endpoint anymore, I don't think.

Test Plan: None

Reviewers: chris, dylan

Reviewed By: dylan

Subscribers: tom

Differential Revision: http://phabricator.khanacademy.org/D9596