How to Edit RSS xml in a dynamic site

Hello Everyone. I have designed a site for my client along with blogging capabilities. He wanted the the blog to appear in the application he has created the site for and hence, asked for the RSS feed. The application developers have come back with a problem in the RSS XML code. They want to remove either the 'Media:content url ’ tag or Media:thumbnail tag from the xml, as it they are not able to integrate this in the application. Can anyone help me with how to or What should reply them with, so that the issue is fixed, as the blog is an integral part of the application. Below is the website and RSS feed link:

http://sbuddy.webflow.io/
http://sbuddy.webflow.io/post/rss.xml

Thanks