How Do You Get Rid Of YouTube Cast to TV Icon?

[jonquan]

So, my roommate got a Roku Ultra for his bedroom TV. We share the same WiFi, and when I'm watching YouTube on my in my room he will be doing something on his Roku and I'll accidentally touch the "Cast to TV" button. There's no confirmation and the thing connects. It's so annoying because, the button is so close to the quality button. Any way to get rid of this stupid feature? It makes him mad because it will interrupt anything he is doing.