Remove the master NoSchedule taint.

cluster/gce/container-linux/configure-helper.sh

@@ -516,7 +516,6 @@ function start-kubelet {
     if [[ "${REGISTER_MASTER_KUBELET:-false}" == "true" ]]; then
       flags+=" --api-servers=https://${KUBELET_APISERVER}"
       flags+=" --register-schedulable=false"
-      flags+=" --register-with-taints=node.alpha.kubernetes.io/ismaster=:NoSchedule"
     else
       # Standalone mode (not widely used?)
       flags+=" --pod-cidr=${MASTER_IP_RANGE}"

cluster/gce/gci/configure-helper.sh

@@ -684,7 +684,6 @@ function start-kubelet {
     if [[ "${REGISTER_MASTER_KUBELET:-false}" == "true" ]]; then
       flags+=" --api-servers=https://${KUBELET_APISERVER}"
       flags+=" --register-schedulable=false"
-      flags+=" --register-with-taints=node.alpha.kubernetes.io/ismaster=:NoSchedule"
     else
       # Standalone mode (not widely used?)
       flags+=" --pod-cidr=${MASTER_IP_RANGE}"

cluster/saltbase/salt/kubelet/default

@@ -33,7 +33,7 @@
     # running on the master.
     {% if grains.kubelet_api_servers is defined -%}
       {% set api_servers_with_port = "--api-servers=https://" + grains.kubelet_api_servers -%}
-      {% set master_kubelet_args = master_kubelet_args + "--register-schedulable=false --register-with-taints=node.alpha.kubernetes.io/ismaster=:NoSchedule" -%}
+      {% set master_kubelet_args = master_kubelet_args + "--register-schedulable=false" -%}
     {% else -%}
       {% set api_servers_with_port = "" -%}
     {% endif -%}