Active Notifications fixes:

fix pocket mode for active display part
remove old broken pocket mode handling code
add 1.5 cm distance handling with 2 second sensor data overide time
prevent notifications from showing in your pocket
reduce battery usage
remove logging: active display frameworks should be good to go

Change-Id: I6ebdb5513eabdde003373874c3f8109a595a1df1
Merge "Active Notifications fixes:" into kk44