Use string instead of ol.RendererHint enum in examples

examples/getfeatureinfo.js

@@ -1,5 +1,4 @@
 goog.require('ol.Map');
-goog.require('ol.RendererHint');
 goog.require('ol.View2D');
 goog.require('ol.layer.Tile');
 goog.require('ol.source.TileWMS');
@@ -24,7 +23,7 @@ var viewProjection = /** @type {ol.proj.Projection} */
 
 var map = new ol.Map({
   layers: [wmsLayer],
-  renderer: ol.RendererHint.CANVAS,
+  renderer: 'canvas',
   target: 'map',
   view: view
 });