Remove device from iTunes

I have a work iPhone that I synced to my home PC once or twice many months ago. I now sync my work iPhone to my work PC as a primary and don't really need to sync this phone to my home PC again. Regular backups of my work PC files are made. When I start iTunes on my home PC, the iPhone link still shows up in the upper right portion of the screen next to the iTunes store button.

How can I remove my work iPhone from popping up on my home PC's iTunes? I know this may be a simple thing to do, I just haven't found a way to do it in iTunes.

Thanks!

 

I did, it still shows up in my iTunes on my home PC. Any other suggestions?

Thanks!