remove ancient pre-2000 ObsoleteFiles.inc entries

We support 10.3 as the minimum version to install from, which was
released in the mid-2010s.  There's a lot of ancient ObsoleteFiles.inc
history that serves no purpose today; start by removing entries from
1999 and earlier.

ObsoleteFiles.inc

@@ -9809,49 +9809,6 @@ OLD_FILES+=usr/bin/miniperl
 OLD_FILES+=usr/bin/sperl
 # 200001XX
 OLD_FILES+=usr/sbin/apmconf
-# 199911XX
-OLD_FILES+=usr/sbin/ipfstat
-OLD_FILES+=usr/sbin/ipmon
-OLD_FILES+=usr/sbin/ipnat
-OLD_FILES+=usr/sbin/bad144
-OLD_FILES+=usr/sbin/wormcontrol
-OLD_FILES+=usr/sbin/named-bootconf
-OLD_FILES+=usr/sbin/kvm_mkdb
-OLD_FILES+=usr/sbin/keyadmin
-# 199909XX
-OLD_FILES+=usr/lib/libdesrypt_p.a
-OLD_FILES+=sbin/ft
-# 199903XX
-OLD_FILES+=sbin/modload
-OLD_FILES+=sbin/modunload
-OLD_FILES+=usr/sbin/natd
-# 199812XX
-OLD_FILES+=sbin/dset
-# 199809XX
-OLD_FILES+=sbin/scsi
-OLD_FILES+=sbin/scsiformat
-OLD_FILES+=usr/sbin/ncrcontrol
-OLD_FILES+=usr/sbin/tickadj
-# 199806XX
-OLD_FILES+=usr/sbin/mkdosfs
-# 199801XX
-OLD_FILES+=sbin/mount_lfs
-OLD_FILES+=sbin/newlfs
-OLD_FILES+=sbin/dumplfs
-OLD_FILES+=usr/sbin/qcamcontrol
-OLD_FILES+=usr/sbin/supscan
-# 1997XXXX
-OLD_FILES+=usr/sbin/sysctl
-OLD_FILES+=usr/sbin/ctm_scan
-OLD_FILES+=usr/sbin/addgroup
-OLD_FILES+=usr/sbin/rmgroup
-# 1996XXXX
-OLD_FILES+=sbin/rdisc
-OLD_FILES+=usr/sbin/cdplay
-OLD_FILES+=usr/sbin/supfilesrv
-OLD_FILES+=usr/sbin/routed
-OLD_FILES+=usr/sbin/lsdev
-OLD_FILES+=usr/sbin/yppasswdd
 ## unsorted
 # do we still support aout builds?
 #OLD_FILES+=usr/lib/aout/c++rt0.o
@@ -10798,10 +10755,6 @@ OLD_LIBS+=usr/lib/libtermcap.so.2
 OLD_LIBS+=usr/lib/libutil.so.2
 OLD_LIBS+=usr/lib/libvgl.so.1
 OLD_LIBS+=usr/lib/libwrap.so.2
-# 19991216
-OLD_FILES+=usr/sbin/xntpdc
-# 199909XX
-OLD_LIBS+=usr/lib/libc_r.so.3
 # ???
 OLD_LIBS+=usr/lib/libarchive.so.2
 OLD_LIBS+=usr/lib/libbsnmp.so.1