How to Unroot to get warranty back

[DooC]

please help me unroot my droid 2 global?
i thought i would like the root on this phone like i did on my droid charge but i dont.
my phone is running 2.3.3 and has cwm on it and just wanna get rid of all that stuff

 

[scarryman04]

Sbf is your only option...and if your outside 12 month period your warranty is already gone...