from what i know: yes, its recommended now and then to remove it, but i dont know how. you gotta google or wait for better advice.***
try adding the hostname in /etc/hosts:
127.0.0.1 localhost desktop-sid
127.0.1.1 desktop-sid
i added the desktop-sid after localhost. i read it somewhere.
you will find your hostname in /etc/hostname.
***
its bout debian, so im not sure if its of use for you. just have a look if you like:
http://forums.debian.net/viewtopic.php?f=16&t=45271
good luck