healthd: disable periodic polled battery status

This change will stop too much of logging made by healthd in kernel logs

Change-Id: I85542f481bf9b688874598b4360a8692b2c4d34d
Merge "healthd: disable periodic polled battery status" into cm-11.0
Merge branch 'cm-11.0' of github.com:CyanogenMod/android_system_core into cm-11.0