Revert "smdk4412-common: camera: implement CAMERA_MSG_FOCUS_MOVE to report CAF"

This reverts commit 7ec34832f52b7f09e31db055a5849f69cd7490a9

Change-Id: Ica3845085c5b841e3e5e5b531d643fb37fdee53d
Revert "camera: Hold 25 msec between preview cycles on restart"

This reverts commit f9439a2e7aab3976ccb6ec67fd353eeb6fc17251.

Change-Id: I0da1848682421ef725c2c87cbd0ef28de91cf2cc