Remove expired ports:

2020-08-26 audio/timidity++-tcltk: Broken for more than 6 months
2020-08-26 biology/pbcopper: Broken for more than 6 months
2020-08-26 devel/ace: Broken for more than 6 months
2020-08-26 devel/bin86: Broken for more than 6 months
2020-08-26 devel/erlang-oserl: Broken for more than 6 months
2020-08-20 emulators/qemu40: Please consider using qemu or qemu41
2020-08-26 games/linux-darwinia-demo: Broken for more than 6 months
2020-08-26 games/linux-defcon: Broken for more than 6 months
2020-08-26 games/linux-uplink-demo: Broken for more than 6 months
2020-08-26 games/xevil: Broken for more than 6 months
2020-08-26 games/xminesweep: Broken for more than 6 months
2020-08-26 graphics/backfract: Broken for more than 6 months
2020-08-26 japanese/kanjipad: Broken for more than 6 months

Deprecate ports broken for more than 6 months

Mark BROKEN: fails to build

../include/pbcopper/json/internal/json.hpp:1229:9: error: static_assert failed
due to requirement 'sizeof(nlohmann::basic_json<std::map, std::vector,
std::__1::basic_string<char>, bool, long, unsigned long, double, std::allocator,
adl_serializer>) == 0' "could not find from_json() method in T's namespace"
        static_assert(sizeof(BasicJsonType) == 0,
        ^             ~~~~~~~~~~~~~~~~~~~~~~~~~~

Reported by:	pkg-fallout

devel/boost-*: update to 1.72.0

Changes:	http://www.boost.org/users/history/version_1_72_0.html
PR:		241449
Exp-run by:	antoine
Differential Revision:	https://reviews.freebsd.org/D22136

biology/unanimity and dependencies: Flag as no longer open source

PacBio now provides unanimity only as a binary package through bioconda.
See https://github.com/PacificBiosciences/ccs.

devel/boost-*: update to 1.71.0

Changes:	http://www.boost.org/users/history/version_1_71_0.html
PR:		238827
Exp-run by:	antoine
Differential Revision:	https://reviews.freebsd.org/D20774

Bump PORTREVISION for ports depending on the canonical version of GCC
as defined in Mk/bsd.default-versions.mk which has moved from GCC 8.3
to GCC 9.1 under most circumstances now after revision 507371.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, everything INDEX-11 shows with a dependency on lang/gcc9 now.

PR:		238330

devel/boost-*: update to 1.70.0

Changes:	http://www.boost.org/users/history/version_1_70_0.html
PR:		235956
Exp-run by:	antoine
Differential Revision:	https://reviews.freebsd.org/D19303

biology/pbcopper: Upgrade to 0.4.1 release

In preparation for biology/unanimity upgrade

Bump PORTREVISION for ports depending on the canonical version of GCC
defined via Mk/bsd.default-versions.mk which has moved from GCC 7.4 t
GCC 8.2 under most circumstances.

This includes ports
 - with USE_GCC=yes or USE_GCC=any,
 - with USES=fortran,
 - using Mk/bsd.octave.mk which in turn features USES=fortran, and
 - with USES=compiler specifying openmp, nestedfct, c11, c++0x, c++11-lang,
   c++11-lib, c++14-lang, c++17-lang, or gcc-c++11-lib
plus, as a double check, everything INDEX-11 showed depending on lang/gcc7.

PR:		231590

devel/boost-*: update to 1.69.0

Changes:	http://www.boost.org/users/history/version_1_69_0.html
PR:		232525
Exp-run by:	antoine
Differential Revision:	https://reviews.freebsd.org/D17645

More precisely specify USES=compiler to fix build on gcc-based
platforms such as powerpc64.

Tested on powerpc64, amd64.

Approved by:	portmgr (tier-2 blanket)

devel/boost-*: update to 1.68.0

- Switch to C++14 for libboost_system to support C++14 consumers

Changes:	http://www.boost.org/users/history/version_1_68_0.html
PR:		229569
Exp-run by:	antoine
Differential Revision:	https://reviews.freebsd.org/D16165

biology/pbcopper: Core C++ library for Pacific Biosciences tools

Approved by:    jrm (mentor)
Differential Revision:  https://reviews.freebsd.org/D15171