delete wrong comment

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7068 8aca7d54-2c30-db11-9de9-000461428c89
(eipi) documentation in hausbauer

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7069 8aca7d54-2c30-db11-9de9-000461428c89
squelch compiler warning

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7070 8aca7d54-2c30-db11-9de9-000461428c89