Revert "torch: use camera interface"

Enabling torch flash via camera interface is too slow.
This reverts commit be772fc5e15f9d573ac0c5232aeda964bf76661c

Change-Id: I5ace0341832f426ec74159227dd49943bddb87f3
Merge remote-tracking branch 'upstream/cm-10.2' into cm-10.2
qcom-common: Remove CM overlays

Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>