prerm is in tua 4.3-13.
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 | #/bin/sh
set -e
# dummy empty prerm to ensure clean upgrades from wheezy, this file can
# be reoved after jessie was released
|