2 step authentication in-game

Hi,
A while back, you put 2 step authentication in-game.
Now I do appreciate that, but for some people like me that is annoying (I have a lot of accounts) and I remember you making an option to switch it off in-game. Logging in today, I suddenly had to insert my 2step auth code in-game and to my suprise the button to switch it off was removed. I asked someone else and he could not see the button anymore to switch it off as well.
So, did you remove it or is it a bug for me? And if you did, why? Cuz for people like multiboxers this is extremely annoying.