[Typo3] Clean up unused data in database - quick solution!

[tapio]

> Seems so. It's a big issue IMHO.
> And why are there fields/tables in the database that are not needed since the extension is not enabled with a clean install (e.g. tt_news, TV) ?

Edit the sql-files for the core extension 'cms'!
Add to 'ext_ables.sql' all tables and fields, which you regard that
the tool should never drop.