https://bugzilla.redhat.com/show_bug.cgi?id=1438089
--- Comment #6 from Fabio Valentini decathorpe@gmail.com --- Tom, thanks for looking into this!
I just informed upstream that they might want to stop using/distributing the picture [1].
If this can be resolved upstream soon-ish, I'll update the upstream tarball to a snapshot not containing the picture. If not, I'll write a script for generating a "clean" tarball.
[1]: https://github.com/xtaci/kcp-go/issues/42