delete container tag from host map (DataDog#21053)

Although using host map, using container tags to filter, so it's removed

Author: aquiladayc

kubernetes/assets/dashboards/kubernetes_dashboard.json

@@ -1649,17 +1649,15 @@
                             "type": "hostmap",
                             "requests": {
                                 "fill": {
-                                    "q": "sum:kubernetes.cpu.usage.total{$scope,$deployment,$statefulset,$replicaset,$daemonset,$namespace,$cluster,$label,$service,$node} by {host}"
+                                    "q": "sum:kubernetes.cpu.usage.total{$scope,$cluster,$label,$node} by {host}"
                                 }
                             },
                             "no_metric_hosts": false,
                             "no_group_hosts": true,
                             "scope": [
                                 "$scope",
                                 "$node",
-                                "$label",
-                                "$kube_deployment",
-                                "$kube_namespace"
+                                "$label"
                             ],
                             "custom_links": [],
                             "style": {
@@ -1766,17 +1764,15 @@
                             "type": "hostmap",
                             "requests": {
                                 "fill": {
-                                    "q": "sum:kubernetes.memory.usage{$scope,$deployment,$statefulset,$replicaset,$daemonset,$namespace,$cluster,$label,$service,$node} by {host}"
+                                    "q": "sum:kubernetes.memory.usage{$scope,$cluster,$label,$node} by {host}"
                                 }
                             },
                             "no_metric_hosts": false,
                             "no_group_hosts": true,
                             "scope": [
                                 "$scope",
                                 "$node",
-                                "$label",
-                                "$kube_deployment",
-                                "$kube_namespace"
+                                "$label"
                             ],
                             "custom_links": [],
                             "style": {
@@ -2238,4 +2234,4 @@
     "layout_type": "ordered",
     "notify_list": [],
     "reflow_type": "fixed"
-}
+}