Reverting a CoreStorage Volume
I ended up stumbling across the answer to my own questions (although David is right, I could have avoided it by following his steps). The guides I found all pointed to the first UUID, but it's actually the 4th one after running the disktutil cs list command. Simple, but took me forever to find. Thanks everyone!
If you're willing to erase the disk again:
diskutil cs delete <UUID of Logical Volume Group>