Remove top() causing "Invalid Formula" (DataDog#21188)

The OOTB Kubernetes DaemonSets Overview page displays a "Replicas Changes" change widget with the following error for all users: Invalid Formula in Query Object

This is being caused by a conflict between a top() function with the change widget, and this PR removes the top() function in the query. 

Motivation:
https://datadog.zendesk.com/agent/tickets/2226887

Author: cdr85

kubernetes/assets/dashboards/kubernetes_daemonsets.json

@@ -309,7 +309,7 @@
                             {
                                 "name": "query1",
                                 "data_source": "metrics",
-                                "query": "top(avg:kubernetes_state.daemonset.ready{$scope,$kube_namespace,$kube_cluster_name,$kube_daemon_set} by {kube_cluster_name,kube_namespace,kube_replica_set}, 10, 'mean', 'desc')",
+                                "query": "avg:kubernetes_state.daemonset.ready{$scope,$kube_namespace,$kube_cluster_name,$kube_daemon_set} by {kube_cluster_name,kube_namespace,kube_replica_set}",
                                 "aggregator": "avg"
                             }
                         ]
@@ -1317,4 +1317,4 @@
     ],
     "layout_type": "free",
     "notify_list": []
-}
+}