Emergency disable pending badges emails

We're bombarding our attendees with these emails, until we figure this out we need to disable this task

uber/tasks/registration.py

@@ -136,6 +136,7 @@ def check_placeholder_registrations():
 
 @celery.schedule(crontab(minute=0, hour='*/6'))
 def check_pending_badges():
+    return
     if c.PRE_CON and (c.DEV_BOX or c.SEND_EMAILS) and c.REPORTS_EMAIL:
         emails = [[
             'Staff',