ENYO-2405: disable BuildStatusUI

- Widget is still present, but it  is no longer trigged by a dedicated
  Entry in the _Project_ menu.
- How to properly  indicate build status will be  handled by follow-up
  JIRA https://enyojs.atlassian.net/browse/ENYO-2565

Enyo-DCO-1.1-Signed-off-by: Francois-Xavier KOWALSKI <francois-xavier.kowalski@hp.com>