azure: instances: remove dead code

pkg/cloudprovider/providers/azure/BUILD

@@ -54,7 +54,6 @@ go_test(
     deps = [
         "//pkg/api/v1:go_default_library",
         "//pkg/api/v1/service:go_default_library",
-        "//vendor/github.com/Azure/azure-sdk-for-go/arm/compute:go_default_library",
         "//vendor/github.com/Azure/azure-sdk-for-go/arm/network:go_default_library",
         "//vendor/github.com/Azure/go-autorest/autorest/to:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/types:go_default_library",

pkg/cloudprovider/providers/azure/azure_instances.go

@@ -19,7 +19,6 @@ package azure
 import (
 	"errors"
 	"fmt"
-	"regexp"
 
 	"k8s.io/kubernetes/pkg/api/v1"
 	"k8s.io/kubernetes/pkg/cloudprovider"
@@ -123,24 +122,6 @@ func (az *Cloud) listAllNodesInResourceGroup() ([]compute.VirtualMachine, error)
 
 }
 
-func filterNodes(nodes []compute.VirtualMachine, filter string) ([]compute.VirtualMachine, error) {
-	filteredNodes := []compute.VirtualMachine{}
-
-	re, err := regexp.Compile(filter)
-	if err != nil {
-		return nil, err
-	}
-
-	for _, node := range nodes {
-		// search tags
-		if re.MatchString(*node.Name) {
-			filteredNodes = append(filteredNodes, node)
-		}
-	}
-
-	return filteredNodes, nil
-}
-
 // mapNodeNameToVMName maps a k8s NodeName to an Azure VM Name
 // This is a simple string cast.
 func mapNodeNameToVMName(nodeName types.NodeName) string {

pkg/cloudprovider/providers/azure/azure_test.go

@@ -25,7 +25,6 @@ import (
 	"k8s.io/kubernetes/pkg/api/v1"
 	serviceapi "k8s.io/kubernetes/pkg/api/v1/service"
 
-	"github.com/Azure/azure-sdk-for-go/arm/compute"
 	"github.com/Azure/azure-sdk-for-go/arm/network"
 	"github.com/Azure/go-autorest/autorest/to"
 )
@@ -680,24 +679,3 @@ func TestDecodeInstanceInfo(t *testing.T) {
 		t.Error("got incorrect fault domain")
 	}
 }
-
-func TestFilterNodes(t *testing.T) {
-	nodes := []compute.VirtualMachine{
-		{Name: to.StringPtr("test")},
-		{Name: to.StringPtr("test2")},
-		{Name: to.StringPtr("3test")},
-	}
-
-	filteredNodes, err := filterNodes(nodes, "^test$")
-	if err != nil {
-		t.Errorf("Unexpeted error when filtering: %q", err)
-	}
-
-	if len(filteredNodes) != 1 {
-		t.Error("Got too many nodes after filtering")
-	}
-
-	if *filteredNodes[0].Name != "test" {
-		t.Error("Get the wrong node after filtering")
-	}
-}