Trusted face gone from smart lock.

[Leandro Brandao]

Hi guys, i noticed that trusted face option was gone from smart lock menu. is not even greyed out, just gone.
there is only trusted devices, places, voice and body detection. android 5.1 gpe, stock, google play services 7.5.71.
already uninstalled all updates for play services and installed again but the option is really gone.