Remove TestDeleteBlob UT

Signed-off-by: Zhecheng Li <zhechengli@microsoft.com>

cluster-autoscaler/cloudprovider/azure/azure_util_test.go

@@ -23,23 +23,11 @@ import (
 	"time"
 
 	"github.com/Azure/azure-sdk-for-go/services/compute/mgmt/2020-12-01/compute"
-	"github.com/Azure/azure-sdk-for-go/services/storage/mgmt/2021-02-01/storage"
-	"github.com/Azure/go-autorest/autorest/to"
-	"github.com/golang/mock/gomock"
 	"github.com/stretchr/testify/assert"
 
-	"sigs.k8s.io/cloud-provider-azure/pkg/azureclients/storageaccountclient/mockstorageaccountclient"
 	"sigs.k8s.io/cloud-provider-azure/pkg/retry"
 )
 
-const (
-	testAccountName = "account"
-	// TODO(nilo19): verify if DeleteBlob unit test needs to check error string, and which message is expected. We saw both:
-	// storageAccountClientErrMsg = "Server failed to authenticate the request. Make sure the value of Authorization " +
-	//	 "header is formed correctly including the signature"
-	// storageAccountClientErrMsg = "The specified account is disabled"
-)
-
 func GetTestAzureUtil(t *testing.T) *AzUtil {
 	return &AzUtil{manager: newTestAzureManager(t)}
 }
@@ -303,26 +291,6 @@ func TestIsAzureRequestsThrottled(t *testing.T) {
 	}
 }
 
-func TestDeleteBlob(t *testing.T) {
-	ctrl := gomock.NewController(t)
-	defer ctrl.Finish()
-
-	azUtil := GetTestAzureUtil(t)
-	mockSAClient := mockstorageaccountclient.NewMockInterface(ctrl)
-	mockSAClient.EXPECT().ListKeys(
-		gomock.Any(),
-		azUtil.manager.config.ResourceGroup,
-		testAccountName).Return(storage.AccountListKeysResult{
-		Keys: &[]storage.AccountKey{
-			{Value: to.StringPtr("dmFsdWUK")},
-		},
-	}, nil)
-	azUtil.manager.azClient.storageAccountsClient = mockSAClient
-
-	err := azUtil.DeleteBlob(testAccountName, "vhd", "blob")
-	assert.Error(t, err)
-}
-
 func TestNormalizeMasterResourcesForScaling(t *testing.T) {
 	templateMap := map[string]interface{}{
 		resourcesFieldName: []interface{}{