Remove obsolete files and old upgrade paths for users coming from version prior to wheezy

debian/nut-server.postinst

@@ -66,29 +66,9 @@ case "$1" in
     # ask udev to check for new udev rules
     [ -x /etc/init.d/udev ] && pidof systemd-udevd > /dev/null \
       && udevadm trigger --subsystem-match=usb --action=change
-
-    # 557178  udevadm trigger --subsystem-match=usb
-
-    if dpkg --compare-versions "$2" le "2.6.4-2~" &&
-      [ -f /etc/init.d/nut ] ; then
-        if [ "`md5sum /etc/init.d/nut | cut -d ' ' -f 1`" = 72f1dbc6b92cb4407f26605d05b12681 ]; then
-            rm -f /etc/init.d/nut
-        else
-            mv /etc/init.d/nut /etc/init.d/nut.dpkg-old
-        fi
-        update-rc.d nut remove >/dev/null
-    fi
     ;;
 
-  abort-upgrade)
-    # do nothing
-    ;;
-
-  abort-remove)
-    # do nothing
-    ;;
-
-  abort-deconfigure)
+  abort-upgrade|abort-remove|abort-deconfigure)
     # do nothing
     ;;