Sitemap and robot.txt with Infinite SEO

On my multisite wordpress site I currently have a standard robot.txt I uploaded to directory and a sitemap I generated using a popular site and also uploaded to directory...

After installing Infinite SEO I network activated the plugin, do I also need to delete the robots.txt file so it uses the virtual robots file? Also do I need to delete the sitemap.xml from directory so it can create it's own one?