Remove support for XFree8-4.
From now on, X_WINDOW_SYSTEM != "xorg" is not supported anymore.
PR: ports/119418
Submitted by: flz
Approved by: portmgr (pav)
Update XFree86 ports, including linux_dri, to 4.3.0. Set IGNORE= in dri-devel
for being outdated. Thank you to all the testers and people who submitted
patches for this update.
Approved by: portmgr