Remove unused imports and release log

android/app/src/main/java/com/audiobookshelf/app/managers/SleepTimerManager.kt

@@ -280,7 +280,6 @@ constructor(private val playerNotificationService: PlayerNotificationService) {
     mediaPlayer.setVolume(SLEEP_TIMER_CHIME_SOUND_VOLUME, SLEEP_TIMER_CHIME_SOUND_VOLUME)
     mediaPlayer.start()
     mediaPlayer.setOnCompletionListener {
-      AbsLogger.info(tag, "playChimeSound: Releasing mediaPlayer after chime sound")
       mediaPlayer.release()
     }
   }

android/app/src/main/java/com/audiobookshelf/app/player/MediaSessionCallback.kt

@@ -8,7 +8,6 @@ import android.util.Log
 import android.view.KeyEvent
 import com.audiobookshelf.app.data.LibraryItemWrapper
 import com.audiobookshelf.app.data.PodcastEpisode
-import com.audiobookshelf.app.device.DeviceManager
 import java.util.*
 import kotlin.concurrent.schedule
 

android/app/src/main/java/com/audiobookshelf/app/player/PlayerNotificationService.kt

@@ -2,17 +2,13 @@ package com.audiobookshelf.app.player
 
 import android.annotation.SuppressLint
 import android.app.*
-import android.bluetooth.BluetoothClass.Device
 import android.content.Context
 import android.content.Intent
-import android.graphics.Bitmap
 import android.graphics.Color
-import android.graphics.ImageDecoder
 import android.hardware.Sensor
 import android.hardware.SensorManager
 import android.net.*
 import android.os.*
-import android.provider.MediaStore
 import android.provider.Settings
 import android.support.v4.media.MediaBrowserCompat
 import android.support.v4.media.MediaDescriptionCompat