Remove Default Navigation Menu Items

I created my blog plugin. So I do not need to use default blog menu on main navigation. I just want to remove it. But I cannot.

Event::listen('', function($manager) {
    $manager->removeMainMenuItem('October.Editor', 'editor');
    $manager->removeMainMenuItem('October.Media', 'media');

This works for removing Editor and Media section for example. But I do not want to remove those. I am trying to remove Blog and Content sections as you can see below.

Hi @bilal

To remove the ‘Blog’ and ‘Content’ menu items, delete their corresponding blueprint files in the app/blueprints directory. After doing so, run php artisan cache:clear to apply the changes.

Thanks a lot. It works. I did waste my time too much.