Spotify Connect - Edit list of available devices

[bclancy12]

I'm an AV installer, and have demonstrated Spotify on a few of the new AV Receivers I've installed lately.  Now, every device (phones, computer) that uses Spotify has my clients devices listed in the list of "Available Devices".

This is an issue for me, as today I put music on and accidentally chose my clients AVR instead of mine, and started playing music at their house! 

I've obvoiusly stopped demoing Spotify, but I need to get the current issue resolved.