Remove use of goog.dom.createElement

src/ol/renderer/dom/domimagelayerrenderer.js

@@ -20,7 +20,7 @@ goog.require('ol.vec.Mat4');
  * @param {ol.layer.Image} imageLayer Image layer.
  */
 ol.renderer.dom.ImageLayer = function(imageLayer) {
-  var target = goog.dom.createElement('DIV');
+  var target = document.createElement('DIV');
   target.style.position = 'absolute';
 
   goog.base(this, imageLayer, target);