How to smoothly transition my iPhone back to iOS 11 non-beta? I signed up and have been using iOS 11 Beta due to ability to record screen video.

But now that iOS 11 is officially released, I am still getting the newest Beta of iOS 11. How do I smoothly transition back to using iOS 11 non-beta?
Actually it's pretty easy.

go to Settings > General > Profiles and tap the iOS Beta Software Profile that appears. Then just delete it. When the next non-beta update is released you can update to it then, or you can back up the phone and restore the current version.