How to disable Windows Defender tray icon in Windows 10 Anniversary Update

Windows 10 Anniversary Update brought yet another change to Windows 10's UI. Windows Defender got a tray icon, which is visible out of the box and indicates the status of the built-in protection. If you are not happy to see it, here is a way to get rid of it and restore the behavior Windows 10 had with the July 2015 release and in version 1511.