Reset screen state to be on

In some test cases, remove unnecessary turnScreenOn and turnScreenOff.
In others, add turnScreenOn to teardown or end of method to reset screen
state.

Bug: 79751404
Bug: 79754740
Test: atest AnomalyDetectionTests HostAtomTests ProcStateAtomTests
MetadataTests ValueMetricsTests ValidationTests

Change-Id: Ib7f5f50312038a0df4391b4bf5d8e1ffcb70bfe4
6 files changed