Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Click the top one -> Partitioning -> Click Memory Card partition -> Minus -> Drag the Mac HD to full size and click "do" or whatever is it.
 
just drag the mac partition all the way across so that it deletes the other
signature_SmileyFace.jpg
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.