WordPress RSS feeds help readers to your blog keep you updated. But if you are creating a business site without blogging feature, you won’t be needing RSS. RSS or Rich Site Summary or often dubbed Really Simple Syndication is a web format in which it is used to publish frequently updated works. Landing pages, static pages, and other non-blog pages don’t require RSS feeds. You might want to disable it or visitors might subscribe to your feed even if there is no feed to subscribe to, therefore leading people into false syndcation which might hurt your website.
Read the full article and the code in removing RSS in your website here: http://www.wprecipes.com/how-to-disable-rss-feeds-on-your-wordpress-blog