How to erase pictures in Photoshop?

If the files you want to remove are in the Recent list, those are the same as the list under File > Open Recent.

Which means they can all be removed from the list by choosing File > Open Recent > Clear Recent File List.

That removes them from the list, not from the computer itself. And you can only clear them all, not pick and choose.

It’s kind of confusing: If you only delete the files from the computer, they will still be in the Recent list until you clear it; but if you only clear the list it doesn’t affect the actual files since it’s only a list. If you really want those files gone, do both: Delete them from your computer and clear the list in Photoshop.

If you are talking about files in the Cloud Documents list, that’s a different answer: Click the ellipsis menu (…) next to a file and choose Delete. Because those are cloud documents, Delete removes them from both the list and the cloud. (Though for a temporary period of time they will remain in the Deleted list in case you want to bring one back.)