[src/trunk]: src remove diff to upstream.

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7556ad461844
branches:  trunk
changeset: 378704:7556ad461844
user:      mrg <mrg%NetBSD.org@localhost>
date:      Sat Apr 24 06:45:56 2021 +0000

description:
remove diff to upstream.