That’s a sponsored theme. Sometimes it’s just best to let them go and find another theme that is similar, although this is a pretty unique theme.
It does no good to post links to php code, as it gets parsed by the browser. Use pastebin to post live code. 🙂
The footer.php file is one of the smallest files in the whole package. Very little of it is necessary for the proper display of your theme.
Suggestion: Save a copy of it and then replace it with:
</div>
<div id="footer">
/* add what you want to here */
<?php wp_footer(); ?>
</div>
</body>
</html>