cleanup

public/app.js

@@ -1,11 +1,9 @@
 const WIDTH = 800;
 const HEIGHT = 600;
+const parseTime = d3.timeParse("%B %e, %Y");
 
 let instances;
-const selectedInstances = [];
 let xScale, yScale;
-const parseTime = d3.timeParse("%B %e, %Y");
-const formatTime = d3.timeFormat("%B %e, %Y");
 
 const renderTable = () => {
 	const trs = d3.select('tbody')