function plt_hide_stop_user_enumeration_menus() {
//Hide the "Settings → Opt In" menu.
remove_submenu_page('options-general.php', 'ffpl-opt-in-SUE-Free');
//Hide the "Settings → Stop User Enumeration" menu.
remove_submenu_page('options-general.php', 'stop-user-enumeration');
}
add_action('admin_menu', 'plt_hide_stop_user_enumeration_menus', 11);