Revert "Add Digital Pen hovering cursor support"

This reverts commit 452395a7b0be15409f8f24631fc55baec3bf97e5.

Change-Id: I56044073a2be926355e6ffe273ad5c014e628d52
sf: Make sure HWC_BLENDING_NONE is set for opaque layer

Before configuring the layers to HWC, make sure
HWC_BLENDING_NONE is set if the layer is opaque.

Change-Id: Ie84aa9d93e98a244692a0cffc2de653a9079f8b4
inputflinger: Add gesture sensor support

Change-Id: Ieca4e54439c47a817aaa6a9b6fabcee750ffc0c2
Add GESTURE_SENSOR input source

Change-Id: If61a7e7bf2d8b2665db7ca57ed68a4462d0c1783