My Sonos can currently be controlled by SmartThings and Alexa. I originally set up SmartThings so that I could turn the Sonos off and on via Alexa before Alexa supported Sonos directly. Now that Sonos integration with Alexa is released, I want to remove Sonos from SmartThings. For the life of me, I cannot find a way to deauthorize SmartThings. Am I just missing the obvious here, or is Sonos not giving users the option to deauthorize third parties?