[TYPO3-project-seminars] update from 0.7.3 to 0.8.3 - remove static_info_tables?

[Kerstin Finke]

I want to update my seminars-extension.
According to the manual I have to
"Install the extension static taxes (static_info_tables_taxes)."
When I do this I get the warning I have to remove static_info_tables.

Now I'm worried if I will lose anything when I remove this extension and 
the database-tables?

Is this no problem?

Greetings
Kerstin