doc: remove PF leftovers from documentation
PF (Packet Filter) has been dropped from the OpenVPN code base, however
some bits and pieces are left in the documentation.
Erase them all.
Reported-by: Arne Schwabe <arne@rfc2549.org>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <
20220113200030.18656-1-a@unstable.cc>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg23531.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>