How to remove/disable automatic "other" in contactus link?
 

In Admincp->Sitename/url/contact details->Contact Us options, you can set some options to be displayed.

I like that, however, I don't like this:
Quote:
If you are using the built-in contact form at sendmessage.php you can specify subjects for users to pick from. An "other" option will be added to any options you specify here.
It would be better if this was a switchable option so you can set it on or off.

I want to have only restricted options, no "other", how can I disable this? I don't mind if this means adjusting a file or template.
But I'm no good at coding so in that case I would like an example like "look for this and replace with this" if possible please.