This reverts commit e83de6429c.
The initialization can be moved into depthcharge. Moving it
there also provides symmetry with the backlight support.
BRANCH=none
BUG=chrome-os-partner:31936
TEST=built on ryu
Change-Id: I46e720567f5732f3a0e0612caa91670e8cb5aa8a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/229790
Reviewed-by: Furquan Shaikh <furquan@chromium.org>