Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

games: remove 'Created by' lines

A big Thank You to the original contributors of these ports:

  *  <benlutz@datacomm.ch>
  *  <janos.mohacsi@bsd.hu>
  *  Aaron Baugher
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Aaron Dalton <aaron@daltons.ca>
  *  Aaron VonderHaar <avh4@usa.net>
  *  Aaron Zauner <az_mail@gmx.at>
  *  Adam Kranzel (adam@alameda.edu)
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Ade Lovett <ade@FreeBSD.org>
  *  Akinori MUSHA aka knu <knu@idaemons.org>

games/flightgear-aircraft: switch from @exec to @preexec

Remove # $FreeBSD$ from Makefiles.

- Update WWW

Approved by:	portmgr blanket

Update Flightgear aicraft to 20190826

Update to latest aircraft versions and change fallback mirror

Update flightgear-aircraft to 20170929

Update aircraft to their latest version

${RM} already has -f.

PR:		213570
Submitted by:	mat
Exp-run by:	antoine
Sponsored by:	Absolight

Remove ${PORTSDIR}/ from dependencies, categories d, e, f, and g.

With hat:	portmgr
Sponsored by:	Absolight

Update Simgear & Flightgear to 2016.1.1

Update Simgear & Flightgear to 3.4.0

Revert r375084

A too sharp axe causes unpredictable damages

Reported by:	amdmi3

Cleanup plist

Update Simgear and Flightgear ports to 3.2.0

PR:		194571
Submitted by:	mike.d.ft402@gmail.com

Remove @dirrm from my ports

- Use /usr/bin/unzip for zip files extraction (part 2)
  Remove most of USES=zip:infozip

PR:        ports/188419
Approved by:	portmgr (bapt)
Exp-run:	antoine

Update Simgear and Flightgear ports to 3.0.0

Convert g* to USES=zip

Update Flightgear and Simgear ports to 2.12.1 (bugfix release)

Use '${COPYTREE_SHARE} .' instead of '${COPYTREE_SHARE} \*' in my ports

Suggested by: danfe

- Update Simgear and Flightgear ports to 2.12.0
- Enable staging
- Switch to new LIB_DEPENDS format
- Refresh Simgear's pkg-descr

- Allow package build, pointyhat is no more

With hat:	portmgr

Add NO_STAGE all over the place in preparation for the staging support (cat:
games)

Update Simgear & Flightgear ports to 2.10.0

Update Simgear and Flightgear ports to 2.8.0

Update Simgear and Flightgear ports to 2.6.0

Rename games/flightgear-aircrafts to games/flightgear-aircraft

PR:     ports/164245