update kubelet flags

docs/09-bootstrapping-kubernetes-workers.md

@@ -139,6 +139,7 @@ ExecStart=/usr/local/bin/kubelet \\
   --anonymous-auth=false \\
   --authorization-mode=Webhook \\
   --client-ca-file=/var/lib/kubernetes/ca.pem \\
+  --cloud-provider= \\
   --cluster-dns=10.32.0.10 \\
   --cluster-domain=cluster.local \\
   --container-runtime=remote \\
@@ -148,7 +149,6 @@ ExecStart=/usr/local/bin/kubelet \\
   --network-plugin=cni \\
   --pod-cidr=${POD_CIDR} \\
   --register-node=true \\
-  --require-kubeconfig \\
   --runtime-request-timeout=15m \\
   --tls-cert-file=/var/lib/kubelet/${HOSTNAME}.pem \\
   --tls-private-key-file=/var/lib/kubelet/${HOSTNAME}-key.pem \\