Guest Session removed, (minor) problem appeared

[Evans Jahja]

Hi, I just removed the guest session because I'm not likely to use it 
anyway. The problem is, after I remove it on the Shutdown menu there are 
double separator which is "ugly". It looks like this:

Available
Away
Busy
Offline
Lock Screen
----------------
----------------
Log Out
etc...

Is there a way to remove one of the separator, and leaving only one?

btw I can't give screenshot since it won't work when I click the 
shutdown menu.