refactor(ngAnimate): simplify markElementAnimationState() and remove redundant calls

Author: gkalpak

src/ngAnimate/animateQueue.js

@@ -482,7 +482,7 @@ var $$AnimateQueueProvider = ['$animateProvider', /** @this */ function($animate
       var counter = (existingAnimation.counter || 0) + 1;
       newAnimation.counter = counter;
 
-      markElementAnimationState(element, PRE_DIGEST_STATE, newAnimation);
+      markElementAnimationState(node, PRE_DIGEST_STATE, newAnimation);
 
       $rootScope.$$postDigest(function() {
         var animationDetails = activeAnimationsLookup.get(node);
@@ -535,7 +535,7 @@ var $$AnimateQueueProvider = ['$animateProvider', /** @this */ function($animate
             ? 'setClass'
             : animationDetails.event;
 
-        markElementAnimationState(element, RUNNING_STATE);
+        markElementAnimationState(node, RUNNING_STATE);
         var realRunner = $$animation(element, event, animationDetails.options);
 
         // this will update the runner's flow-control events based on
@@ -700,11 +700,10 @@ var $$AnimateQueueProvider = ['$animateProvider', /** @this */ function($animate
       return allowAnimation && rootNodeDetected && bodyNodeDetected;
     }
 
-    function markElementAnimationState(element, state, details) {
+    function markElementAnimationState(node, state, details) {
       details = details || {};
       details.state = state;
 
-      var node = getDomNode(element);
       node.setAttribute(NG_ANIMATE_ATTR_NAME, state);
 
       var oldValue = activeAnimationsLookup.get(node);