am c15c2656: audio policy: remove redundant fixed volume management

        device = outputDesc->device();

    }

    // if volume is not 0 (not muted), force media volume to max on digital output

    if (stream == AUDIO_STREAM_MUSIC &&

        index != mStreams[stream].mIndexMin &&

        (device == AUDIO_DEVICE_OUT_AUX_DIGITAL ||

         device == AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET)) {

        return 1.0;

    }

    volume = volIndexToAmpl(device, streamDesc, index);

    // if a headset is connected, apply the following rules to ring tones and notifications