Remove submenu in Admin Bar WordPress

function.php

<?php
 
/*
*
*
* REMOVER WORDPRESS SUBMENU EN ADMIN BAR
*
*
*/
if (!current_user_can('administrator')):
  add_action( 'admin_bar_menu', 'remove_wp_nodes', 999 );
  function remove_wp_nodes() 
  {
      global $wp_admin_bar;   
      $wp_admin_bar->remove_node( 'new-link' );
      $wp_admin_bar->remove_node( 'new-media' );
      $wp_admin_bar->remove_node( 'new-page' );
  }
endif;

?>