Removing the ast account

We used to have an account "ast" as a token to Andrew S. Tannebaum,
the creator of MINIX. The account was disable by default, with no
possible way to login.

It seems it generates more confusion than it is worth, so this removes it.

The default skeleton user profile is still stored into /etc/ast instead
of the usual /etc/skel.

Change-Id: I71818c0bb9580cdecfa9621f8693586fc48d17cb

distrib/sets/lists/minix/mi

@@ -121,9 +121,9 @@
 ./etc/ttys				minix-sys
 ./etc/utmp				minix-sys
 ./home					minix-sys
-./home/ast				minix-sys
-./home/ast/.exrc			minix-sys
-./home/ast/.profile			minix-sys
+./home/ast				minix-sys	obsolete
+./home/ast/.exrc			minix-sys	obsolete
+./home/ast/.profile			minix-sys	obsolete
 ./home/bin				minix-sys
 ./home/bin/.exrc			minix-sys
 ./home/bin/.profile			minix-sys

etc/Makefile

@@ -435,7 +435,6 @@ install-etc-files-safe: .PHONY .MAKE check_DESTDIR MAKEDEV
 		${BINOWN} ${BINGRP}	${BINMODE}	${NETBSDSRCDIR}/etc/devmand/scripts/ ${DESTDIR}/etc/devmand/scripts/ singlechar \
 		${BINOWN} ${BINGRP}	${NONBINMODE}	${NETBSDSRCDIR}/etc/ast/ ${DESTDIR}/usr/ast/ .[aepv]* \
 		${BINOWN} ${BINGRP}	${NONBINMODE}	${NETBSDSRCDIR}/etc/ast/ ${DESTDIR}/root/ .[aepv]* \
-		ast	  users		${NONBINMODE}	${NETBSDSRCDIR}/etc/ast/ ${DESTDIR}/home/ast/ .[aepv]* \
 		bin	  ${BINGRP}	${NONBINMODE}	${NETBSDSRCDIR}/etc/ast/ ${DESTDIR}/home/bin/ .[aepv]* \
 
 	${_MKMSG_INSTALL} ${DESTDIR}${tdir}${files:T}

etc/master.passwd

@@ -4,7 +4,6 @@ bin:*:2:0::0:0:Binaries:/home/bin:/bin/sh
 uucp:*:5:5::0:0:UNIX to UNIX copy:/usr/spool/uucp:/usr/bin/uucico
 news:*:6:6::0:0:Usenet news:/usr/spool/news:/bin/sh
 ftp:*:7:7::0:0:Anonymous FTP:/usr/ftp:/bin/sh
-ast:*:8:100::0:0:Andrew S. Tanenbaum:/home/ast:/bin/sh
 www:*:9:9::0:0:World Wide Web:/usr/www:/bin/sh
 driver:*:10:10::0:0:Device Drivers:/:/bin/sh
 server:*:11:11::0:0:OS Servers:/:/bin/sh

etc/mtree/NetBSD.dist.base

@@ -168,9 +168,6 @@
 ./tmp
 ./usr/tmp
 
-/set type=dir uid=8 gid=0 mode=755
-./home/ast
-
 /set type=dir uid=2 gid=0 mode=755
 ./home/bin
 

minix/commands/setup/setup.sh

@@ -746,7 +746,7 @@ bios="`echo $primary | sed -e 's/d./dX/g' -e 's/c.//g'`"
 
 if [ ! "$auto" = "r" ]
 then	if mount /dev/$home /home 2>/dev/null
-	then	for u in bin ast
+	then	for u in bin
 		do	h=`eval echo "~$u"`
 			if mkdir $h
 			then	echo " * Creating home directory for $u in $h"