Removing /home/bin

The bin user doesn't need an actual home folder to run the tests. As
such this account should not be used in 'su - bin'. To be noted that
'su bin' still works as expected, and allow to run the minix test set
as usual.

Change-Id: I21fd178bf3b7b28849f05ef24930b553094cc851

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]* \
-		bin	  ${BINGRP}	${NONBINMODE}	${NETBSDSRCDIR}/etc/ast/ ${DESTDIR}/home/bin/ .[aepv]* \
 
 	${_MKMSG_INSTALL} ${DESTDIR}${tdir}${files:T}
 	if [ ! -e ${tdir} ]; then \

etc/master.passwd

@@ -1,6 +1,6 @@
 root::0:0::0:0:Big Brother:/root:/bin/sh
 daemon:*:1:1::0:0:The Deuce:/etc:/bin/sh
-bin:*:2:0::0:0:Binaries:/home/bin:/bin/sh
+bin:*:2:0::0:0:Binaries Commands and Source:/nonexistent:/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

etc/mtree/NetBSD.dist.base

@@ -168,9 +168,6 @@
 ./tmp
 ./usr/tmp
 
-/set type=dir uid=2 gid=0 mode=755
-./home/bin
-
 /set type=dir uid=2 gid=0 mode=755
 ./usr/tests/minix-posix
 ./usr/tests/minix-posix/blocktest