Reformat bandwidth data return section

lib/bandwidth-chart.js

@@ -25,15 +25,13 @@ function pointsFromBandwidthData(values, numPoints) {
   }
 
   // Return points
-  const result = points
+  return points
 
     // Calculate average value of each point
     .map(point => Math.round(point.reduce((a,b) => a + b) / point.length))
 
     // Convert bytes to megabytes
     .map(bytes => Number((bytes / 1000000).toPrecision(3)));
-
-  return result;
 }
 
 module.exports = values => {