At step 9 TitleRefreshCallback is not required any more

[danaimset]

Prompt to remove TitleRefreshCallback callback cause it's not using anymore.

[danaimset]

There is also reference to removed function in KDoc:

/**

• [LiveData] to load title.
• This is the main interface for loading a title. The title will be loaded from the offline
• cache.
• Observing this will not cause the title to be refreshed, use [TitleRepository.refreshTitleWithCallbacks]
• to refresh the title. */ val title: LiveData<String?> = titleDao.titleLiveData.map { it?.title }