Revert "health: batteryStateOfHealth should be a property"

This reverts commit a60e7a43a90ef990f9d5426df04411025ccbc82e.

Reason for revert: merge to aosp first
Bug: 251427118
Test: m android.hardware.health-update-api

Change-Id: If56fe4b141b3ad31b7f859118e432f08915c98f3
Signed-off-by: Jack Wu <wjack@google.com>
6 files changed