devel/py-utils: Removed on maintainers request, uses EOLed python27

Port is already deprecated, has no dependents, and sources are older than a decade.

PR: 249663
Submitted by: Steve Wills <swills@FreeBSD.org>
Approved by: arrowd (mentor), Daniel Bretoi <daniel@netwalk.org> (maintainer)
Differential Revision: https://reviews.freebsd.org/D27233