Remove obsolete login.preinst

The transitional behaviour was complete before oldoldstable and is no
longer relevant.  Moving this snippet will eventually enable us to
remove the preinst for login completely (when the /etc/securetty
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/login.postinst

@@ -14,7 +14,6 @@ then
 		fi
 	fi
 fi
-rm -f /etc/pam.d/login.pre-upgrade 2>/dev/null
 
 if [ "$1" = "configure" ]; then
 	# Install faillog during initial installs only

debian/login.preinst

@@ -1,52 +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 $1.pre-upgrade
-	sed -e '/^[^#][ \t]*assword[ \t]*required[ \t]*pam_unix.so/ s/ md5$//' $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/login 5e61c3334e25625fe1fa4d79cf9123ff
-		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
-
-