sitemap_index.xml bug

/sitemap_index.xml has an error reporting that:
/wp-content/plugins/wordpress-seo/js/dist/jquery.tablesorter.min.js is missing. Is it intended but you just forgot to remove the script linking?
I dont know how Google SEO thinks about 404 in that page but i think its better fixed.

Other than that, the plugin is excellent. Thank you!