Remove old panopticon task
Remove old panopticon task

Registering only with panopticon isn't that helpful, and the new
reregister tasks allow registering everything with panopticon and any
other appropriate apps.  Therefore, remove this script to avoid
confusing duplication.

alphagov/publisher,leftees/publisher,telekomatrix/publisher,alphagov/publisher,telekomatrix/publisher,leftees/publisher,leftees/publisher,alphagov/publisher,telekomatrix/publisher,leftees/publisher,telekomatrix/publisher