SystemUI: cleanup battery tile

Revert "base: SystemUI: make the battery saver tile useful"

This reverts commit 452f0b401937a2f9c987ff16b447f8af738518a0.

Revert "Revert "Remove BatteryDetail from BatterySaverTile""

This reverts commit 4d417be3424e1ec34ebf1be6c1c3a96a48ef1128.

Change-Id: I9ac5639f50ea5880f1b24297ae0b6b05e79a3394
4 files changed