How to delete photos and the content in it?

I'm trying to sort out my photos on my Mac using the photos app. I have all my photos in their corresponding albums however when I try to remove an album completely I don't see an option to remove all its content as well. it says that the "The items in this album will still be visible in your photo library and other albums that contain them."

I would like to remove the entire album with its content completely. Is there a way to do that?