function plt_hide_hide_admin_bar_from_front_end_menus() {
//Hide the "Settings → Hide/Show Admin Bar" menu.
remove_submenu_page('options-general.php', 'hide_admin_bar_from_front_end');
}
add_action('admin_menu', 'plt_hide_hide_admin_bar_from_front_end_menus', 11);