There should have been an option to do this in My Account. I don't remember how my photos ended up in Photoshop and I didn't agree to them being moved to Revel (despite the website saying that people outside the US would be emailed I recived nothing about this until 14/6/13).
Please contact me privately to advise how to do this or just delete and confirm has been done.
You do not have a Photoshop.com account or a Revel account. If you would like to try Revel, you can go to adoberevel.com or you can download the app for Mac or iOS.