Merge pull request #14719 from lissyx/bug890440

Bug 890440 - Disable system workarounds for notification sent with the deprecated API r=alive
(cherry picked from commit b84aa4ba45f5f5e069bbc3b83270fc6e5d53bbd9)

Conflicts:
	apps/system/js/notifications.js
Merge pull request #17169 from mikehenrty/v1.3-uplift

Merge pull request #14719 from lissyx/bug890440, r=alive