You want to remove the admin bar on the front of your website.
If you add the code below in the functions.php file of your theme, this option will no longer be in view.
function hide_admin_bar_from_front_end(){
if (is_blog_admin()) {
return true;
}
return false;
}
add_filter( 'show_admin_bar', 'hide_admin_bar_from_front_end' );