remove build.Critical where its not needed, fix NDF
remove build.Critical where its not needed, fix NDF

ericflo/Sia,mtlynch/Sia,ChrisSchinnerl/Sia,NebulousLabs/Sia,ChrisSchinnerl/Sia,mharkus/Sia,mtlynch/Sia,mharkus/Sia,MrStrong/Sia,NebulousLabs/Sia,MrStrong/Sia,ericflo/Sia