ci: skip restart and validation test in dualstack windows (#3426)

pick: skip restart and validation test in dualstack windows

Author: QxBytes

.pipelines/singletenancy/dualstack-overlay/dualstackoverlay-e2e-step-template.yaml

@@ -113,38 +113,4 @@ steps:
       displayName: "Windows DualStack Overlay Datapath Tests"
       retryCountOnTaskFailure: 3
 
-    - task: AzureCLI@1
-      inputs:
-        azureSubscription: $(BUILD_VALIDATIONS_SERVICE_CONNECTION)
-        scriptLocation: "inlineScript"
-        scriptType: "bash"
-        addSpnToEnvironment: true
-        inlineScript: |
-          set -e
-          clusterName=${{ parameters.clusterName }}
-          echo "Restarting nodes"
-          for val in $(az vmss list -g MC_${clusterName}_${clusterName}_$(REGION_DUALSTACKOVERLAY_CLUSTER_TEST) --query "[].name" -o tsv); do
-            make -C ./hack/aks restart-vmss AZCLI=az CLUSTER=${clusterName} REGION=$(REGION_DUALSTACKOVERLAY_CLUSTER_TEST) VMSS_NAME=${val}
-          done
-      displayName: "Restart Nodes"
-
-    - task: AzureCLI@1
-      inputs:
-        azureSubscription: $(BUILD_VALIDATIONS_SERVICE_CONNECTION)
-        scriptLocation: "inlineScript"
-        scriptType: "bash"
-        addSpnToEnvironment: true
-        inlineScript: |
-          set -e
-          cd test/integration/load
-
-          # Scale Cluster Up/Down to confirm functioning CNS
-          ITERATIONS=2 SCALE_UP=${{ parameters.scaleup }} OS_TYPE=windows go test -count 1 -timeout 30m -tags load -run ^TestLoad$
-          kubectl get pods -owide -A
-
-          cd ../../..
-          echo "Validating Node Restart"
-          make test-validate-state OS_TYPE=windows RESTART_CASE=true CNI_TYPE=cniv2
-          kubectl delete ns load-test
-      displayName: "Validate Node Restart"
-      retryCountOnTaskFailure: 3
+    # Windows node restart and validation tests removed due to flakiness