Simplify almost junction validation
Simplify almost junction validation

openstreetmap/iD,morray/iD,kartta-labs/iD,kartta-labs/iD,openstreetmap/iD,digidem/iD,AndreasHae/iD,digidem/iD,openstreetmap/iD,morray/iD,AndreasHae/iD,kartta-labs/iD,AndreasHae/iD