Covers the following two cards:
https://trello.com/c/Gsv3rBOW/318-remove-mss-on-16-upgrade-mss-should-be-removed-when-rhmi-is-upgraded-from-15-to-16 https://trello.com/c/ChZlRf4l/319-remove-mss-on-16-fresh-installs-the-mss-service-should-not-be-part-of-a-new-fresh-install-of-rhmi-16