I do not think so.
If I look at the tinymce page on configuration I can't see any way:

http://www.tinymce.com/wiki.php/Configuration

What you might be able to do is to hide it with some custom css, those rows has a id on them so this css should be able to hide them

#width_row {
    display: none;
}

#styleSelectRow {
    display: none;
}

The only.... but big problem is that the html code loaded in it is in a iframe so putting this css in the editor.css (or simular) does not help.
I can't figure out a way to pass these rules into the iframe now, saidly.. But, if you find a way, it should work