function plt_hide_wd_twitter_feed_menus() {
//Hide the "Twitter Feed" menu.
remove_menu_page('twitter_feed_settings');
//Hide the "Twitter Feed → Settings" menu.
remove_submenu_page('twitter_feed_settings', 'twitter_feed_settings');
//Hide the "Twitter Feed → Purchase" menu.
remove_submenu_page('twitter_feed_settings', 'twitter-feed-purchase');
}
add_action('admin_menu', 'plt_hide_wd_twitter_feed_menus', 11);