Revert "[Settings] Ability to turn HW keys on/off on supported devices (2/2)"

This reverts commit 87ca0be959593551bf0d36b4c62d99c11b8e7f20.

Conflicts:
	res/values/bs_strings.xml

Change-Id: Iee15fc992069da56b8d13e99bd2563fd3e6c458f