Delete Samba de Amigo releases

Please delete the Dreamcast and Arcade release info of Samba de Amigo here:

http://www.giantbomb.com/samba-de-amigo/61-20575/releases/

These two should belong on the other Samba De Amigo page, which I already requested for.

Also, I was the one who put those two releases there in the first place. So that was my bad.

That was a new one for me.  Now I know how to do it. 

Done.