Remove extraneous line.
diff --git a/example/Tracer/js/Tracer.js b/example/Tracer/js/Tracer.js
index b25ffd3..52744e5 100644
--- a/example/Tracer/js/Tracer.js
+++ b/example/Tracer/js/Tracer.js
@@ -144,7 +144,6 @@
   },
 
   toString : function () {
-    var floor = Math.floor;
     var r = Math.floor(this.red*255);
     var g = Math.floor(this.green*255);
     var b = Math.floor(this.blue*255);