fix(cli): remove unused credential commands

cmd/helm/credential.go

@@ -1,57 +0,0 @@
-/*
-Copyright 2016 The Kubernetes Authors All rights reserved.
-
-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 main
-
-import (
-	"github.com/codegangsta/cli"
-)
-
-func init() {
-	addCommands(credCommands())
-}
-
-func credCommands() cli.Command {
-	return cli.Command{
-		Name:    "credential",
-		Aliases: []string{"cred"},
-		Usage:   "Perform repository credential operations.",
-		Subcommands: []cli.Command{
-			{
-				Name:  "add",
-				Usage: "Add a credential to the remote manager.",
-				Flags: []cli.Flag{
-					cli.StringFlag{
-						Name:  "file,f",
-						Usage: "A JSON file with credential information.",
-					},
-				},
-				ArgsUsage: "CREDENTIAL",
-			},
-			{
-				Name:      "list",
-				Usage:     "List the credentials on the remote manager.",
-				ArgsUsage: "",
-			},
-			{
-				Name:      "remove",
-				Aliases:   []string{"rm"},
-				Usage:     "Remove a credential from the remote manager.",
-				ArgsUsage: "CREDENTIAL",
-			},
-		},
-	}
-}