Removed debugging changes from FontMetrics.

Author: Dmitriy Kubyshkin

lib/FontMetrics.js

@@ -35,7 +35,7 @@ var FontMetrics = function(family, size) {
   // Baseline is important for positioning text on canvas
   this._baseline = span.offsetTop + span.offsetHeight;
 
-  // document.body.removeChild(line);
+  document.body.removeChild(line);
 };
 
 module.exports = FontMetrics;