Merge "Remove unused MediaRouter2Manager from VolumeDialogControllerImpl" into main

import android.media.AudioSystem;

import android.media.IAudioService;

import android.media.IVolumeController;

import android.media.MediaRouter2Manager;

import android.media.VolumePolicy;

import android.net.Uri;

import android.os.Handler;

    private final Context mContext;

    private final Looper mWorkerLooper;

    private final PackageManager mPackageManager;

    private final MediaRouter2Manager mRouter2Manager;

    private final WakefulnessLifecycle mWakefulnessLifecycle;

    private final AudioManager mAudio;

    private final IAudioService mAudioService;

        mWorkerLooper = theadFactory.buildLooperOnNewThread(

                VolumeDialogControllerImpl.class.getSimpleName());

        mWorker = new W(mWorkerLooper);

        mRouter2Manager = MediaRouter2Manager.getInstance(mContext);

        mMediaSessionsCallbacksW = new MediaSessionsCallbacks();

        mMediaSessions = createMediaSessions(mContext, mWorkerLooper, mMediaSessionsCallbacksW);

        mAudioSharingInteractor = audioSharingInteractor;