Requested by:	portmgr

Based on an idea by des@, bump PORTREVISION to avoid PORTEPOCH.

Also take maintainership to take deprekators away.

Upstream disapeared, and 2 forks are available, KarypisLab on GitHub and
the PETSc one. ATM PETSc seems more active.

Don’t install one more libmetis but depend on the regular one, and thus
don’t install the libraries under $PREFIX/lib/parmetis.

Note: manual.pdf is no more available.

2025-02-28 math/parmetis: Fails to fetch, unmaintained for years in tree

* Broken for months (unfetchable)
* Unmaintained for years
* Upstream is unresponsive [1]

References:
1: https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=parmetis

Reported by:	pkg-fallout

- Remove all references to defunct ARCH arm
- Remove all references to defunct ARCH sparc64
- Remove x11-drivers/xf86-video-sunffb which requires defunct sparc64
  ARCH
- Remove sysutils/afbinit requires defunct sparc64 ARCH
- Remove all references to bktr driver
- Remove all references to defunct FreeBSD_12
- Remove all references to OSVERSION/OSREL corresponding to 12
- Remove conditionals in Mk/Uses/cabal.mk
- Remove sparc reference from Mk/Uses/qt-dist.mk
- Remove BROKEN_sparc64/NOT_FOR_ARCH=sparc64
- Remove BROKEN_FreeBSD_12* from:
- Remove OpenSSL patches from:
- Remove conditional flags for OSVERSION >= 1300000 to fixed flags.
  Also move conditional flags for non sparc64/arm ARCH to fixed flags.

Reviewed by:	brooks, jbeich, rene, salvadore
Differential Revision: https://reviews.freebsd.org/D42068

Also use the MPI helper.