How this add-on named? How do I remove it?

[MrLoL]

I got a add-on in my folder that I don't know what is it.

It's the "Host name" tab in server list.



It's really annoying, since v20 it show a blank space.

I really need to know the name of this and remove it.

[Ad Bot]

[Crown2]

http://forum.returntoblockland.com/dlm/viewFile.php?id=567
Client_JoinGUIHostname

[MrLoL]

Thanks a lot.

locking