SAAS-1068: Crossfade button broken when editing new smart block
SAAS-1068: Crossfade button broken when editing new smart block

* Shouldn't have been enabled in the first place.

LibreTime/libretime,LibreTime/libretime,comiconomenclaturist/libretime,comiconomenclaturist/libretime,comiconomenclaturist/libretime,Lapotor/libretime,comiconomenclaturist/libretime,Lapotor/libretime,comiconomenclaturist/libretime,LibreTime/libretime,comiconomenclaturist/libretime,Lapotor/libretime,Lapotor/libretime,comiconomenclaturist/libretime,LibreTime/libretime,LibreTime/libretime,Lapotor/libretime,Lapotor/libretime,LibreTime/libretime