Remove divider or add another (main menu)

Hello,

i need a bit of help with fixing my main menu, which I have centered now.
As you can see here: http://dawn-eternal.net/ The Home menu does not have the divider, yet the last menu item (Raid Calendar) has one on its right.
Solutions would be
1. add one divider to the first menu item
2. remove the divider from the last menu item.

Could you please give me a solution for any of these two?

Thank you.