Ok I found out this much – the text is found in the language file ‘fi_FI.mo’ but if I delete that part of text, the site won’t work.
There’s something in the /wp-includes/gettext.php that requires 2+2 translation tables and puts that text on the top of my front page.
I still can’t understand how to get rid of that text! If I can’t delete the text – can I make it so that it won’t show on my front page???