I've deleted all related files and published demo's, but for some reason they are still accesable online. How can I delete something that is from a source pov no where to be found?
go to assets.adobe.com and sign in with your Adobe credentials. Once inside, click on the published entry. Here will appear all the prototypes mentioned in the generated link. To delete them all you have to do is hover over them with the mouse and, at the bottom right, the "other options" icon will appear. At this point, you just have to click and then click on "delete permanently".