         controlContentView.axis = .horizontal
 
         let optionsContentView = UIStackView(arrangedSubviews: [
-            listButton, libraryButton, cloudButton, routePickerView
+            libraryButton, cloudButton, routePickerView
         ])
         optionsContentView.distribution = .equalCentering
         optionsContentView.alignment = .fill

        mediaController.nextTrack()
    }

    @objc private func didTapListButton() {
        let viewController = UIViewController()
        viewController.view.backgroundColor = .systemBackground
        present(viewController, animated: true, completion: nil)
    }

    @objc private func didTapLibraryButton() {
        let picker = MPMediaPickerController(mediaTypes: .anyAudio)
        picker.delegate = self

            systemName: "music.note", action: #selector(didTapLibraryButton), style: .body)
        let cloudButton = createButton(
            systemName: "icloud.fill", action: #selector(didTapCloudButton), style: .body)

        let routePickerView = AVRoutePickerView()
        let volumeSlider = MPVolumeView()
