postrm is in libchado-perl 1.31-4.
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  | #!/bin/bash
set -e
case "$1" in
    purge)
          rm -rf /usr/share/gmod/chado
    ;;
esac
 |