function plt_hide_flamingo_menus() {
//Hide the "Flamingo" menu.
remove_menu_page('flamingo');
//Hide the "Flamingo → Address Book" menu.
remove_submenu_page('flamingo', 'flamingo');
//Hide the "Flamingo → Inbound Messages" menu.
remove_submenu_page('flamingo', 'flamingo_inbound');
}
add_action('admin_menu', 'plt_hide_flamingo_menus', 11);