ports r518822 dropped the version restriction from the new
qemu-user-static-devel port, follow suit and drop it from the remaining
qemu-* ports that don't actually specifically depend on python2.7 -- qemu
has supported python >= 3 since sometime in the 2.x series, and all of these
ports surpass the mark.
PORTREVISION is bumped by recommendation of koobs for people holding
python2.7 simply because these ports required it.
Q/A
* testport: looks good
Approved by: koobs (ports)
Approved by: portmgr (blanket: ports/framework (python) compliance)
MFH: 2019Q4
1ff995829e