remove unused code (#4981)

roles/kubernetes-apps/ansible/templates/dashboard.yml.j2

@@ -140,9 +140,7 @@ spec:
       labels:
         k8s-app: kubernetes-dashboard
     spec:
-{% if kube_version is version('v1.11.1', '>=') %}
       priorityClassName: system-cluster-critical
-{% endif %}
       containers:
       - name: kubernetes-dashboard
         image: {{ dashboard_image_repo }}:{{ dashboard_image_tag }}

roles/kubernetes-apps/ansible/templates/dns-autoscaler.yml.j2

@@ -34,9 +34,7 @@ spec:
         scheduler.alpha.kubernetes.io/critical-pod: ""
         seccomp.security.alpha.kubernetes.io/pod: 'docker/default'
     spec:
-{% if kube_version is version('v1.11.1', '>=') %}
       priorityClassName: system-cluster-critical
-{% endif %}
       securityContext:
         supplementalGroups: [ 65534 ]
         fsGroup: 65534

roles/kubernetes-apps/ansible/templates/netchecker-agent-ds.yml.j2

@@ -12,9 +12,7 @@ spec:
       labels:
         app: netchecker-agent
     spec:
-{% if kube_version is version('v1.11.1', '>=') %}
       priorityClassName: {% if netcheck_namespace == 'kube-system' %}system-node-critical{% else %}k8s-cluster-critical{% endif %}{{''}}
-{% endif %}
       tolerations:
         - effect: NoSchedule
           operator: Exists

roles/kubernetes-apps/ansible/templates/netchecker-agent-hostnet-ds.yml.j2

@@ -16,9 +16,7 @@ spec:
       dnsPolicy: ClusterFirstWithHostNet
       nodeSelector:
         beta.kubernetes.io/os: linux
-{% if kube_version is version('v1.11.1', '>=') %}
       priorityClassName: {% if netcheck_namespace == 'kube-system' %}system-node-critical{% else %}k8s-cluster-critical{% endif %}{{''}}
-{% endif %}
       tolerations:
         - effect: NoSchedule
           operator: Exists

roles/kubernetes-apps/ansible/templates/netchecker-server-deployment.yml.j2

@@ -11,9 +11,7 @@ spec:
         app: netchecker-server
       namespace: {{ netcheck_namespace }}
     spec:
-{% if kube_version is version('v1.11.1', '>=') %}
       priorityClassName: {% if netcheck_namespace == 'kube-system' %}system-cluster-critical{% else %}k8s-cluster-critical{% endif %}{{''}}
-{% endif %}
       containers:
         - name: netchecker-server
           image: "{{ netcheck_server_image_repo }}:{{ netcheck_server_image_tag }}"

roles/kubernetes-apps/ansible/templates/nodelocaldns-daemonset.yml.j2

@@ -19,9 +19,7 @@ spec:
         prometheus.io/scrape: 'true'
         prometheus.io/port: '9253'
     spec:
-{% if kube_version is version('v1.11.1', '>=') %}
       priorityClassName: system-cluster-critical
-{% endif %}
       serviceAccountName: nodelocaldns
       hostNetwork: true
       dnsPolicy: Default  # Don't use cluster DNS.