AN: Crap polishing

-kill 2 private functions with 1 line in them... WHY?!
-use the final ints defined for the superfluous POCKET_MODE enumeration
-take a stab at preventing screen wake in pockets with AN enabld and pocket mode set to show notifications (LSN does this fine)

TODO(@Dave):
- INHERITANCE -- these 2 features are way too large and similar for this volume of copy/pasta... furthermore, their conflicting auto-wakeup behaviors should be controlled centrally, because this mess is a mess.

Change-Id: I38a89d25232c66b08d95566d283556bdafe0533d