Mark ports recursively depending on Python 2.7 for expiration on June 23.
For ports optionally dependending on Python 2.7, just mark those options
as expired. Remove konquerer from the x11/kde-baseapps metaport and bump
its PORTREVISION.
Submitted by: rene
Reviewed by: portmgr, adridg, ehaupt, lme, madpilot, pizzamig, se, sunpoet, yuri
Approved by: portmgr
Differential Revision: https://reviews.freebsd.org/D28665