removed unneccesary check for event
removed unneccesary check for event

jdhodges/d3fc-showcase,rjmcneill/d3fc-showcase,djmiley/d3fc-showcase,jleft/BitFlux,jleft/d3fc-showcase,ScottLogic/BitFlux,jdhodges/d3fc-showcase,ScottLogic/d3fc-showcase,jleft/d3fc-showcase,rjmcneill/d3fc-showcase,djmiley/d3fc-showcase,ScottLogic/d3fc-showcase,ScottLogic/d3fc-showcase,jdhodges/d3fc-showcase,ScottLogic/BitFlux,rjmcneill/d3fc-showcase,djmiley/d3fc-showcase,jleft/BitFlux,jleft/d3fc-showcase