function plt_hide_instagram_feed_menus() {
//Hide the "Instagram Feed" menu.
remove_menu_page('sb-instagram-feed');
//Hide the "Instagram Feed → Settings" menu.
remove_submenu_page('sb-instagram-feed', 'sb-instagram-feed');
//Hide the "Instagram Feed → About Us" menu.
remove_submenu_page('sb-instagram-feed', 'sb-instagram-feed-about');
}
add_action('admin_menu', 'plt_hide_instagram_feed_menus', 11);