postrm is in xcdroast 0.98+0alpha16-1ubuntu1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | #!/bin/sh -e
if [ "$1" = "purge" ] ; then
    if [ -n "`dpkg-statoverride --list /usr/lib/xcdroast/bin/xcdrwrap`" ] ; then
	dpkg-statoverride --quiet --remove /usr/lib/xcdroast/bin/xcdrwrap
    fi
fi
# Automatically added by dh_installdebconf
if [ "$1" = purge ] && [ -e /usr/share/debconf/confmodule ]; then
	. /usr/share/debconf/confmodule
	db_purge
fi
# End automatically added section
# Automatically added by dh_installmenu
if [ -x "`which update-menus 2>/dev/null`" ]; then update-menus ; fi
# End automatically added section
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