OmniGears: cleanup duplicate button brightness setting

Currently, button brightness settings are accessible from 2 locations:

Settings > Display > Brightness

and

Settings > Buttons

Since it's BUTTON settings, let's contain these settings to the BUTTONS category

Change-Id: I4164791d902a750b2ee3c6cf8ebdeddd4162db99
15 files changed
tree: f846e62e5f86a917c001ebd0b423716ea0081f9f
  1. res/
  2. src/
  3. Android.mk