[PATCH 3/3] emacs: Drop content-free "Unknown signature status" button

[David Bremner]

Daniel Kahn Gillmor <dkg at fifthhorseman.net> writes:

> When we have not been able to evaluate the signature status of a given
> MIME part, showing a content-free (and interaction-free) "[ Unknown
> signature status ]" button doesn't really help the user at all, and
> takes up valuable screen real-estate.
>
> A visual reminder that a given message is *not* signed isn't helpful
> unless it is always present, in which case we'd want to see "[ Unknown
> signature status ]" buttons on all messages, even ones that don't have
> a signing structure, but i don't think we want that.

amended version pushed to master

d