Revert "Merge "BatteryService(jni): properly handle read's return value" into ics-mr0"
Revert "Merge "BatteryService(jni): properly handle read's return value" into ics-mr0"

This reverts commit f0ad147fc33cf55cd9427010b2cdb3eb89b9eec3, reversing
changes made to bd9b1528051a1b257768fdbc5077a2d4473b02dd.

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base