Settings: remove auto_brightness_adjustment_title string

The controls which used this string were removed.

Change-Id: Ia1b2aa93f2beea27c17546e293b9aa7c2aa62931
Signed-off-by: Roman Birg <roman@cyngn.com>
Merge pull request #8 from CarbonDev/kk

Settings: remove auto_brightness_adjustment_title string