Merge commit '9d633968ceb502e95f9785b169742624f72614f5' * commit '9d633968ceb502e95f9785b169742624f72614f5': IPowerManager: remove some unused methods.
Merge commit '9d633968ceb502e95f9785b169742624f72614f5' * commit '9d633968ceb502e95f9785b169742624f72614f5': IPowerManager: remove some unused methods.