function plt_hide_advanced_responsive_video_embedder_menus() {
//Hide the "Settings → ARVE" menu.
remove_submenu_page('options-general.php', 'nextgenthemes_arve');
//Hide the "Settings → NextGenThemes" menu.
remove_submenu_page('options-general.php', 'nextgenthemes');
}
add_action('admin_menu', 'plt_hide_advanced_responsive_video_embedder_menus', 11);