function plt_hide_disk_usage_sunburst_menus() { //Hide the "Tools → Disk Usage" menu. remove_submenu_page('tools.php', 'disk-usage-sunburst/rbdusb-disk-usage-sunburst.php'); } add_action('admin_menu', 'plt_hide_disk_usage_sunburst_menus', 11);
Where do I put this code?