Fix bug where distance was calculated wrongly

frontend/src/app/dashboard/dashboard.component.ts

@@ -78,8 +78,6 @@ export class DashboardComponent implements AfterViewInit {
         const dist1 = beats[i].coordinate;
         const dist2 = beats[i + 1].coordinate;
         tDistance += this.api.distanceInKmBetweenEarthCoordinates(dist1[0], dist1[1], dist2[0], dist2[1]);
-
-        i++;
       }
 
       this.totalDistance = tDistance.toFixed(2);