Remove app security settings from lockscreen settings.

Change-Id: Id0f4c29bc52117b58392a35804c3cd2b3c7c631b
Settings: update Italian translation

Was "LockClock: add Italian translation (2 of 2)"

Change-Id: I8a457886a1cdeb2eed36c32fc21f876a643620a5

Conflicts:
	res/values-it/strings.xml