Comment 0 for bug 1657107

Something like this:

$ snap remove --unused <snap>

That would remove old revisions that are currently unused by the given snap.

As an implementation note, "unused" means not current internally. If the snap is disabled, all revisions will be currently disabled, but the current one should remain in the system if --unused is provided.

This bug is a clone of the following github issue: https://github.com/snapcore/snapd/issues/2484