Remove obsolete code from passwd maintscripts

The transitional behaviour was complete before oldoldstable and is no
longer relevant.  Moving this snippet will eventually enable us to
remove the preinst for passwd completely (when the
/etc/cron.daily/passwd removal is complete).  This will both reduce
the total number of maintscripts and also enable us to simplify
deployment DPKG_ROOT (the InstallBootstrap spec).

  * https://wiki.debian.org/Teams/Dpkg/Spec/InstallBootstrap

Signed-off-by: Niels Thykier <niels@thykier.net>

debian/passwd.postinst

@@ -4,20 +4,6 @@ set -e
 
 case "$1" in
 configure)
-    # Fix permissions on various log files from old versions of the debian
-    # installer, some unrelated to passwd but we decided to put the fix
-    # here since there was no better place. This can safely be removed
-    # after etch is released.
-    if dpkg --compare-versions "$2" lt "1:4.0.14-9"; then
-	    for log in /var/log/base-config* \
-		    $(find /var/log/debian-installer/ /var/log/installer/ -type f 2>/dev/null ); do
-		if [ -e "$log" ]; then
-			chmod 600 "$log"
-		fi
-            done
-    fi
-
-    rm -f /etc/pam.d/passwd.pre-upgrade 2>/dev/null
 	if ! getent group shadow | grep -q '^shadow:[^:]*:42'
 	then
 		groupadd -g 42 shadow || (

debian/passwd.preinst

@@ -1,51 +0,0 @@
-#! /bin/sh
-
-#
-# see: dh_installdeb(1)
-
-set -e
-
-# summary of how this script can be called:
-#        * <new-preinst> `install'
-#        * <new-preinst> `install' <old-version>
-#        * <new-preinst> `upgrade' <old-version>
-#        * <old-preinst> `abort-upgrade' <new-version>
-#
-# for details, see http://www.debian.org/doc/debian-policy/ or
-# the debian-policy package
-
-remove_md5() {
-    if md5sum $1 2>/dev/null |grep -q $2; then
-	cp $1 $1.pre-upgrade
-	sed -e '/^[^#]*[ \t]*password[ \t]*required[ \t]*pam_unix.so/ s/ md5$//' $1 >$1.post-upgrade \
-	    && mv $1.post-upgrade $1
-    fi
-    }
-
-
-case "$1" in
-    install|upgrade)
-        if [ "x$2" != "x" ] ; then
-	    if dpkg --compare-versions $2 lt 1:4.0.3 ; then
-		remove_md5 /etc/pam.d/passwd 23a5d1465bbc1e39ca6e0c32f22a75c9
-	    fi
-	fi
-    ;;
-
-    abort-upgrade)
-    ;;
-
-    *)
-        echo "preinst called with unknown argument \`$1'" >&2
-        exit 1
-    ;;
-esac
-
-# dh_installdeb will replace this with shell code automatically
-# generated by other debhelper scripts.
-
-#DEBHELPER#
-
-exit 0
-
-