lineage-sdk: Drop Expanded Desktop API

 * This conflicts with AOSP gestures implemention now, and
   the framework part is hard to port.
 * Furthermore the original implementation has the following
   bugs/issues:
   1. Pressing power button or double tap does not wake up the device
   2. No soft-key buttons when opening the keyboard
   3. Probably more

Change-Id: Ia233c3b9d0aa7426f0fd15dffe4da203b4e09b1d