Remove Annoying Add-on option

Hello, I love this theme but it is about to get deactivated really quick. I allow vendors to have the option to add products but all they see on there dashboard is the annoying option to add a license key and buy addons for the site. This needs to be removed or i will never use this plugin again please tell me how to do this.

https://www.ads-software.com/plugins/amazon-s3-and-cloudfront/