function plt_hide_bulk_noindex_nofollow_toolkit_by_mad_fish_menus() {
//Hide the "Tools → Bulk NoIndex/NoFollow" menu.
remove_submenu_page('tools.php', 'no-index-toolkit');
}
add_action('admin_menu', 'plt_hide_bulk_noindex_nofollow_toolkit_by_mad_fish_menus', 11);