Drop MULTIZONE CI jobs

config/jobs/kubernetes/sig-cloud-provider/gcp/gcp-gce.yaml

@@ -839,36 +839,6 @@ periodics:
     testgrid-alert-email: release-team@kubernetes.io
     description: Uses kubetest to run e2e tests (+Slow, -Serial|Disruptive|Flaky|Feature) against a cluster created with cluster/kube-up.sh
 
-- interval: 30m
-  name: ci-kubernetes-e2e-gce-multizone
-  labels:
-    preset-service-account: "true"
-    preset-k8s-ssh: "true"
-  spec:
-    containers:
-    - args:
-      - --timeout=170
-      - --bare
-      - --scenario=kubernetes_e2e
-      - --
-      - --check-leaked-resources
-      - --cluster=bootstrap-e2e-gce-mz
-      - --env=MULTIZONE=true
-      # Where the nodes reside.  Master is in the first one.
-      - --env=E2E_ZONES=us-central1-a us-central1-b us-central1-f
-      - --extract=ci/latest
-      - --gcp-node-image=gci
-      - --gcp-project=k8s-jkns-e2e-gce-ubelite
-      - --gcp-zone=us-central1-a
-      - --ginkgo-parallel=25
-      - --provider=gce
-      - --test_args=--ginkgo.skip=\[Slow\]|\[Serial\]|\[Disruptive\]|\[Flaky\]|\[Feature:.+\] --minStartupPods=8
-      - --timeout=150m
-      image: gcr.io/k8s-testimages/kubekins-e2e:v20210412-176e4b6-master
-  annotations:
-    testgrid-dashboards: google-gce
-    testgrid-tab-name: gce-multizone
-
 - interval: 12h
   name: ci-kubernetes-soak-gce-gci
   labels:

config/jobs/kubernetes/sig-network/ingress-gce-e2e.yaml

@@ -202,38 +202,6 @@ periodics:
     testgrid-dashboards: sig-testing-canaries
     testgrid-tab-name: ingress-gce-e2e-canary
     description: Duplicate of ci-ingress-gce-e2e pinned to a k8s-infra community-owned project
-- name: ci-ingress-gce-e2e-multi-zone
-  interval: 3h
-  labels:
-    preset-service-account: "true"
-    preset-k8s-ssh: "true"
-    preset-ingress-master-yaml: "true"
-  spec:
-    containers:
-    - image: gcr.io/k8s-testimages/kubekins-e2e:v20210412-176e4b6-master
-      args:
-      - --timeout=340
-      - --bare
-      - --scenario=kubernetes_e2e
-      - --
-      - --check-leaked-resources
-      - --cluster=
-      - --env=MULTIZONE=true
-      # Where the nodes reside.  Master is in the first one.
-      - --env=E2E_ZONES=us-central1-a us-central1-b us-central1-f
-      - --env=GCE_GLBC_IMAGE=gcr.io/k8s-ingress-image-push/ingress-gce-glbc-amd64:master
-      - --extract=ci/latest
-      - --gcp-project-type=ingress-project
-      - --gcp-zone=us-central1-a
-      - --ginkgo-parallel=1
-      - --provider=gce
-      - --test_args=--ginkgo.focus=\[Feature:Ingress\]
-      - --timeout=320m
-
-  annotations:
-    testgrid-dashboards: sig-network-ingress-gce-e2e
-    testgrid-tab-name: ingress-gce-e2e-multi-zone
-    testgrid-alert-email: kubernetes-sig-network-test-failures@googlegroups.com
 - name: ci-ingress-gce-e2e-release-1-6
   interval: 90m
   labels:

config/jobs/kubernetes/sig-node/containerd.yaml

@@ -346,36 +346,6 @@ periodics:
     testgrid-tab-name: e2e-cos-device-plugin-gpu
     testgrid-num-failures-to-alert: '8'
     testgrid-alert-stale-results-hours: '24'
-- interval: 2h
-  name: ci-cri-containerd-e2e-gce-multizone
-  labels:
-    preset-service-account: "true"
-    preset-k8s-ssh: "true"
-    preset-e2e-containerd: "true"
-    preset-e2e-containerd-image-load: "true"
-  spec:
-    containers:
-    - args:
-      - --repo=github.com/containerd/containerd=master
-      - --timeout=170
-      - --scenario=kubernetes_e2e
-      - --
-      - --check-leaked-resources
-      - --cluster=
-      - --env=MULTIZONE=true
-      # Where the nodes reside.  Master is in the first one.
-      - --env=E2E_ZONES=us-central1-a us-central1-b us-central1-f
-      - --extract=ci/latest
-      - --gcp-node-image=gci
-      - --gcp-zone=us-central1-a
-      - --ginkgo-parallel=25
-      - --provider=gce
-      - --test_args=--ginkgo.skip=\[Slow\]|\[Serial\]|\[Disruptive\]|\[Flaky\]|\[Feature:.+\] --minStartupPods=8
-      - --timeout=150m
-      image: gcr.io/k8s-testimages/kubekins-e2e:v20210412-176e4b6-master
-  annotations:
-    testgrid-dashboards: sig-node-containerd, sig-node-cos
-    testgrid-tab-name: e2e-cos-multizone
 - interval: 1h
   name: ci-cri-containerd-e2e-cos-gce
   labels:

config/testgrids/kubernetes/sig-storage/config.yaml

@@ -64,12 +64,6 @@ dashboards:
       description: storage gci gce alpha enabled default features e2e tests for master branch
       alert_options:
         alert_mail_to_addresses: kubernetes-sig-storage-test-failures@googlegroups.com
-    - name: gce-multizone
-      test_group_name: ci-kubernetes-e2e-gce-multizone
-      base_options: include-filter-by-regex=Volume%7Cstorage
-      description: storage gce multizone e2e tests for master branch
-      alert_options:
-        alert_mail_to_addresses: kubernetes-sig-storage-test-failures@googlegroups.com
     - name: gce-iscsi
       test_group_name: ci-kubernetes-e2e-gce-iscsi
       base_options: include-filter-by-regex=Volume%7Cstorage