C-43: PilotLifecycleManager should delete specific Listeners

[doridori]

https://github.com/doridori/Pilot/blob/master/android/lib/app/src/main/java/com/kodroid/pilot/lib/android/PilotLifecycleManager.java#L103 should delete specific listeners rather than all. If the same stack instance is used across Activity instances e.g. after a config change, and the lifecycle methods interleave like the below:

• NewActivity.onCreate()
  • PilotLifecycleManager.addListener()
• OldActivity.onStop()
• OldActivity.onDestroy
  • PilotLifeCycleManager.removeAllListeners()

then the NewActivity has its listener removed. remove should only remove the listeners that lifecycleManager added.