Uninstall or Disable WPMU?

Hi there,

I enabled WPMultiSite on my website, but I realized that I'm not quite ready to have it - not sure if I want it in the future either.. So, my main question is:

Is there a way to disable WP Multisite so it's as if it's not even installed with the option on enabling it later on?
OR - If not, how do I uninstall WP MultiSite completely? (since I already know how to enable it, I can always do that again..)

Thanks!