Removing category in the blog´s breadcrumb

I followed this thread thread from 2013.
https://kriesi.at/support/topic/removing-category-in-the-blogs-breadcrumb/#post-138577
It works okay but the code I commented out is different. Can you just confirm what I have commented won’t give me problems: This is what I commented:

        /* if('post' == $post_type && $show_categories)
        {
                $category = get_the_category();
				
                foreach($category as $cat)
                {
                    if(!empty($cat->parent))
                    {
                        $parents = get_category_parents($cat->cat_ID, TRUE, '$$$', FALSE );
                        $parents = explode("$$$", $parents);
                        foreach ($parents as $parent_item)
                        {
                            if($parent_item) $trail[] = $parent_item;
                        }
                        break;
                    }
                }
                
                if(isset($category[0]) && empty($parents))
                {
                	$trail[] = '<a href="'.get_category_link($category[0]->term_id ).'">'.$category[0]->cat_name.'</a>';
                }
                
        } */

Thanks
Rob