setup: follow-up to r9638, we also don't need to install the `messages.pot` file.
setup: follow-up to r9638, we also don't need to install the `messages.pot` file.


git-svn-id: 0d96b0c1a6983ccc08b3732614f4d6bfcf9cbb42@9640 af82e41b-90c4-0310-8c96-b1721e28e2e2

rbaumg/trac,rbaumg/trac,rbaumg/trac,rbaumg/trac