Revert "AMBARI-4853. Job details UI keeps flashing every 6s (fix for graph) (alexantonenko)"

This reverts commit 13affcb86d55f847c55074d9d1016da2bcb6b133.
Breaks the min/max heat indicators per Tez vertex.

ambari-web/app/views/main/jobs/hive_job_details_tez_dag_view.js

@@ -202,7 +202,20 @@ App.MainHiveJobDetailsTezDagView = Em.View.extend({
    */
   vertexMetricsUpdated : function() {
     var dagVisualModel = this.get('dagVisualModel');
-
+    dagVisualModel.minMetrics = {
+      input : 0,
+      output : 0,
+      recordsRead : 0,
+      recordsWrite : 0,
+      tezTasks : 0
+    };
+    dagVisualModel.maxMetrics = {
+      input : 0,
+      output : 0,
+      recordsRead : 0,
+      recordsWrite : 0,
+      tezTasks : 0
+    };
     if (dagVisualModel.nodes) {
       dagVisualModel.nodes.forEach(function(node) {
         var vertex = App.TezDagVertex.find(node.id);