docs(k8s): remove routed ip docs (#4449)

Author: bene2k1

menu/navigation.json

@@ -2044,10 +2044,6 @@
                     "label": "Modifying kernel parameters in a Kubernetes cluster using a DaemonSet",
                     "slug": "modifying-kernel-parameters-kubernetes-cluster"
                   },
-                  {
-                    "label": "Moving Kubernetes nodes to routed IPs",
-                    "slug": "move-kubernetes-nodes-routed-ip"
-                  },
                   {
                     "label": "Creating and configuring a Load Balancer service",
                     "slug": "kubernetes-load-balancer"