How do i hide the "no cameras rendering" message in Game view

i want to hide the “no cameras rendering” message in unity. i dont want to add a camera to the scene because it will be UI only. if i can add a camera component that does not render and slow down the scene, that would be fine too.

I found the answer literally 2 minutes after posting this.

You click the 3 vertical dots in the top-right corner of the Game tab above "Gizmos", and un-check the checkbox labeled "warn if no cameras rendering".

It still shows up in the new fullscreen preview mode. Anyone know how to turn it off please?

Unity Update!
The setting has moved. You can find it now by right-clicking on the Game window tab