* Simplify DownloadService wake lock handling
_isRunning is only modified in onCreate/onDestroy, so the listener
job is redundant.
* Drop superclass calls to Service.onCreate/onDestroy
From https://developer.android.com/guide/components/services
> Note: Unlike the activity lifecycle callback methods, you are not
> required to call the superclass implementation of these callback
> methods.
(cherry picked from commit aca65f13bb94b6c0c4a77a9d426491d3667f4a7d)
8ff51227bd