"remove all" button to remove all Generative Fill generations

With Generative Fill, the generated images fill up the property's window quickly, adding to the file size. It's too tedious to remove each one manually, so I have to start over on a new layer after a few attempts. It would be useful to have a "remove all" button, which would remove all generations at once from a layer, but keep the layer and mask. (or, perhaps, it could remove all generations, but keep the last generated one.)