Nuke the 'vibrate during call' option.

It has never worked anyway, as NotificationManagerService prevented the
vibration on a lower level.

Change-Id: I5192d841796d3a2e1a447140eb26096b09aaec2d

Conflicts:
	res/values-ar/strings.xml
	res/values-de/strings.xml
	res/values-es-rUS/strings.xml
	res/values-hu/strings.xml
	res/values-it/strings.xml
	res/values-lt/strings.xml
	res/values-pt/strings.xml
	res/values-ro/strings.xml
	res/values-ru/strings.xml
	res/values-vi/strings.xml
	res/values/strings.xml