That code is present in nearly all of the new StudioPress themes. If you take a look at the Genesis Sample theme’s css you will see it there as well. Wes designs all of his themes on top of the sample theme as a base (which is why you see it there). So if you remove that part that could also work as well…..although most people want this feature inside the css.
I actually prefer to keep it there and manually apply the code as @Eric mentioned above.
Either way should work.
