Removes the Top Admin Toolbar menu for users who are not Super Admins of a multisite network

//Removes the Top Admin Toolbar menu for users who are not Super Admins of a multisite network

add_action( 'admin_bar_menu', 'remove_wp_customize_edit', 999 );

function remove_wp_customize_edit( $wp_admin_bar ) {

if ( !is_admin() ) {

$wp_admin_bar->remove_node( 'edit' );
$wp_admin_bar->remove_menu('customize');

}
}

##################################
// add a link to the WP Toolbar
##################################

function custom_toolbar_link($wp_admin_bar) {
    $args = array(
        'id' => 'id-management',
        'title' => 'Management',
        'href' => '/management',
        'meta' => array(
            'class' => 'management',
            'title' => 'Management'
            )
    );
    $wp_admin_bar->add_node($args);
}
add_action('admin_bar_menu', 'custom_toolbar_link', 999);