Where do you want to remove the commas ?
When I see :
Luxembourg
What I am supposed to do with it ?
If I see :
Luxembourg, , , => This is the city
, , , Luxembourg => This is the country
, , Luxembourg, => This is the county/ administrative area of Belgium
So the commas are important in the display of editors.
Beside this, the commas are removed from the graphical tree.
And you can adjust the format to display only on or two jurisdictions.
Zurga