How to Hide the "Next Meetup Hint settings" Admin Menu
function plt_hide_next_meetup_hint_menus() {
//Hide the "Settings → Next Meetup Hint settings" menu.
remove_submenu_page('options-general.php', 'next-meetup-hint');
}
add_action('admin_menu', 'plt_hide_next_meetup_hint_menus', 11);