Log Message:
lang/python*: Use libreadline unconditionally.

libedit breaks some applications.  Maybe we can fix it later but for
now let's just go back to using libreadline unconditionally like we
did before.

PKGREVISION++ because this materially affects the build product -- it
built before this change but didn't work right for some applications.
(No change to platforms without libedit -- which is most non-NetBSD
platforms, probably -- but we don't have per-platform PKGREVISION, so
gotta bump it for everyone.)

No change to 2.7, 3.9, or 3.10 because they already use libreadline
unconditionally; respecting READLINE_TYPE is a new change in >=3.11
since April which broke applications.

ok jperkin

PR pkg/58875: python: terminal colours broke in some applications