remove unused federation_util.go

test/e2e/framework/federation_util.go

@@ -1,42 +0,0 @@
-/*
-Copyright 2016 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package framework
-
-import (
-	"fmt"
-	"regexp"
-
-	validationutil "k8s.io/apimachinery/pkg/util/validation"
-	"k8s.io/kubernetes/pkg/api/validation"
-)
-
-// GetValidDNSSubdomainName massages the given name to be a valid dns subdomain name.
-// Most resources (such as secrets, clusters) require the names to be valid dns subdomain.
-// This is a generic function (not specific to federation). Should be moved to a more generic location if others want to use it.
-func GetValidDNSSubdomainName(name string) (string, error) {
-	// "_" are not allowed. Replace them by "-".
-	name = regexp.MustCompile("_").ReplaceAllLiteralString(name, "-")
-	maxLength := validationutil.DNS1123SubdomainMaxLength
-	if len(name) > maxLength {
-		name = name[0 : maxLength-1]
-	}
-	// Verify that name now passes the validation.
-	if errors := validation.NameIsDNSSubdomain(name, false); len(errors) != 0 {
-		return "", fmt.Errorf("errors in converting name to a valid DNS subdomain %s", errors)
-	}
-	return name, nil
-}