Merge pull request #1 from MaritzSTL/fix/remove-polyfill

Removing intersection-observer polyfill

Author: laurkatz13

bower.json

@@ -3,7 +3,6 @@
   "description": "Polymer behavior providing useful hooks into HTMLElement state (i.e, element.isVisible if the element is displayed to the user).",
   "main": "deep-element-behavior.html",
   "dependencies": {
-    "deep-intersection-observer": "MaritzSTL/deep-intersection-observer#^0.0.2",
     "polymer": "Polymer/polymer#^1.0 || ^2.0"
   },
   "devDependencies": {

deep-element-behavior.html

@@ -1,5 +1,3 @@
-<link rel="import" href="../deep-intersection-observer/deep-intersection-observer.html">
-
 <script>
   window.deep = window.deep || {};
 
@@ -21,11 +19,9 @@
       this.__visibilityObserver.observe(this);
 
       const that = this;
-      if (typeof that.__visibilityObserver._checkForIntersections === 'function') {
-        window.addEventListener('checkForIntersections', function() {
-          that.__visibilityObserver._checkForIntersections();
-        });
-      }
+      window.addEventListener('checkForIntersections', function() {
+        that.__visibilityObserver._checkForIntersections();
+      });
     },
     detached() {
       this.__visibilityObserver.disconnect();