You might want to ask this question in the actual Whitespace theme's Support & Feature Request page, where the author would most likely see it.

http://www.concrete5.org/index.php?cID=16512...

Also, including information like more details about what area you're talking about, screenshots or links to your site would help someone here understand more clearly what you are asking. ("Are you talking about removing the entire header, logo/title and nav bar as well?")

Thanks!