Remove row when clicking trash icon in raw tag editor (closes #2418)
Remove row when clicking trash icon in raw tag editor
(closes #2418)

Dispatching `event.change(tag)` does update the tag editor in most
cases, but it is not sufficient to remove a blank row with no tags..

zbycz/iD,energiekollektiv/openmod.sh-id,tbicr/iD,andreic-telenav/iD,openstreetmap/iD,edpop/iD,zbycz/iD,digidem/iD,ngageoint/hootenanny-ui,bagage/iD,kartta-labs/iD,tbicr/iD,digidem/iD,andreic-telenav/iD,edpop/iD,AndreasHae/iD,energiekollektiv/openmod.sh-id,AndreasHae/iD,openstreetmap/iD,1ec5/iD,1ec5/iD,kartta-labs/iD,morray/iD,AndreasHae/iD,kepta/iD,ngageoint/hootenanny-ui,bagage/iD,edpop/iD,mapmeld/iD,openstreetmap/iD,bagage/iD,kepta/iD,mapmeld/iD,kartta-labs/iD,morray/iD,mapmeld/iD,1ec5/iD,ngageoint/hootenanny-ui