There is no reason NOT to remove Yasuo's double crit rate now.
With the new masteries and how they completely break Yasuo's passive, there is literally no reason NOT to remove the double crit rate part of the passive on him. In the end he wills till have his shield and that's a pretty good passive in it's self. there's no need for him to have 2 passives anyway.
Seriously Riot, admit it, its really the only fix for this, it was a nerf that has been called for for along time on Yasuo and now you have the absolute perfect excuse to do it.
Just do it.