Revert "fix preview/camera crash after stopping video record"

This reverts commit 22b9a3bffe68a17cc048255415be3ecc55a9140f.
Revert "camerawrapper: Do not cancel auto focus when preview is not running"

This reverts commit 553571f7e89a276972464f1e46086ca68ddf8444.
Revert "camera: Add wrapper"

This reverts commit 63f3f0ef966f45dc5f5d8a3e9b7e50219bd05137.

Conflicts:
	camera/Android.mk