Hello, welcome to therichpost.com. In this post, I will tell you, How to delete the default post type and category in wordpress? Like I always say WordPress is the best cms.
In this post, I will tell you code to remove default post type in wordpress dashboard menu and here is the working code:
add_action('admin_menu','remove_default_post_type');
function remove_default_post_type() {
remove_menu_page('edit.php');
}