postrm is in zeitgeist-core 0.9.16-0ubuntu4.
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 | #! /bin/sh
set -e
dpkg-maintscript-helper rm_conffile /etc/bash_completion.d/zeitgeist-core 0.9.14-2~ -- "$@"
dpkg-maintscript-helper rm_conffile /etc/bash_completion.d/zeitgeist-daemon 0.9.14-2~ -- "$@"
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