Revert "healthd: don't report fake data for battery-less devices"

This reverts commit de610c9a0edc94e4c119eb1bb3b0aa73a548cb54.

Reason for revert: May trigger flakiness in CTS ActivityManagerAssistantStackTests.

Change-Id: I02f831048f7802d91331e67bd9006860e4572b92
2 files changed