Remove "Comments" link from admin bar if comment status is closed for Wordpress

/**
 * Disable 'Comments' link if default status is _closed_
 */
function remove_comments() 
{
    $default_comment_status = get_option( 'default_comment_status' );


    if ( $default_comment_status == 'closed' ) 
    {
        remove_action( 'admin_bar_menu', 'wp_admin_bar_comments_menu', 50 );

        // optional solution using the WP_Admin_Bar class from /wp-includes/class-wp-admin-bar.php
        # global $wp_admin_bar;
        # $wp_admin_bar->remove_menu( 'comments' );
    }
    else 
    {
        return;
    }
}