descriptor: remove old descriptors completely

Knot.files

src/Makefile.am

src/common/descriptor.c

src/common/descriptor.h

src/knot/conf/conf.h

src/knot/ctl/knotc_main.c

src/knot/ctl/remote.c

src/knot/server/notify.c

src/knot/server/rrl.c

src/knot/server/xfr-handler.c

src/knot/server/zones.c

src/knot/zone/semantic-check.c

src/knot/zone/zone-dump.c

src/libknot/consts.h

src/libknot/edns.c

src/libknot/libknot.h

src/libknot/nameserver/name-server.c

src/libknot/nsec3.c

src/libknot/packet/packet.c

src/libknot/packet/response.c