Various fixes and cleanups after 7.1.2 merge

* Nuked CAF's modifications for carrier boot animation.
  Something we'll never use, and it conflicts with some
  related changes Google did in 7.1.2.
* Correctly assign new MAX_PROFILE_ID in BluetoothProfile
* Add missing mHandler in BluetoothManagerService
* Add missing mReset in LightsService
* Remove unused code.
* The rest is just code cleanup and modifications to match upstream
  AOSP code. The goal is to minimize future merge conflicts.

Change-Id: I27a7443244812602c072976eb979eb67f2e638a8