postrm is in libglobus-xio-net-manager-driver 0.14-2.
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  | #!/bin/sh
set -e
if [ "$1" = "remove" ]; then
   ldconfig
fi
 |