Frameworks: Optimize more and fixes

Batterybar this time

- unregister observe
- fix another old old glitch in center mode
- code cleanup

cheers

Change-Id: Icddcfe7664b24dfb54ea45c34ce1b179fc368ef2
Optimize: this time CircleBattery and Clock

cheers

Change-Id: I08dbd8c23a751101b40eae3967b06c9daa622022
Frameworks: Lazy dev part 2 (1/2)

this is based on the last lazy dev commit from me with the same
reasons, this time navbar and statusbar white color did no stick because
of not used long var to save.

Best on that....I realized later that I am not allone a lazy dev. Aosp
does count -1 automatic as white lmao

whatever changed default valus to -2 and cleaned 4 lines up

cheers

Change-Id: Ie6cb0c80d6b1aff1fdb4c257a658e73506ade4df