cleanup some dead kubectl code and narrow scope of helpers

pkg/kubectl/util/BUILD

@@ -98,7 +98,6 @@ filegroup(
     name = "all-srcs",
     srcs = [
         ":package-srcs",
-        "//pkg/kubectl/util/crlf:all-srcs",
         "//pkg/kubectl/util/hash:all-srcs",
         "//pkg/kubectl/util/i18n:all-srcs",
         "//pkg/kubectl/util/logs:all-srcs",

pkg/kubectl/util/crlf/BUILD

@@ -1,25 +0,0 @@
-package(default_visibility = ["//visibility:public"])
-
-load(
-    "@io_bazel_rules_go//go:def.bzl",
-    "go_library",
-)
-
-go_library(
-    name = "go_default_library",
-    srcs = ["crlf.go"],
-    importpath = "k8s.io/kubernetes/pkg/kubectl/util/crlf",
-)
-
-filegroup(
-    name = "package-srcs",
-    srcs = glob(["**"]),
-    tags = ["automanaged"],
-    visibility = ["//visibility:private"],
-)
-
-filegroup(
-    name = "all-srcs",
-    srcs = [":package-srcs"],
-    tags = ["automanaged"],
-)

pkg/kubectl/util/crlf/crlf.go

@@ -1,57 +0,0 @@
-/*
-Copyright 2015 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 crlf
-
-import (
-	"bytes"
-	"io"
-)
-
-type crlfWriter struct {
-	io.Writer
-}
-
-// NewCRLFWriter implements a CR/LF line ending writer used for normalizing
-// text for Windows platforms.
-func NewCRLFWriter(w io.Writer) io.Writer {
-	return crlfWriter{w}
-}
-
-func (w crlfWriter) Write(b []byte) (n int, err error) {
-	for i, written := 0, 0; ; {
-		next := bytes.Index(b[i:], []byte("\n"))
-		if next == -1 {
-			n, err := w.Writer.Write(b[i:])
-			return written + n, err
-		}
-		next = next + i
-		n, err := w.Writer.Write(b[i:next])
-		if err != nil {
-			return written + n, err
-		}
-		written += n
-		n, err = w.Writer.Write([]byte("\r\n"))
-		if err != nil {
-			if n > 1 {
-				n = 1
-			}
-			return written + n, err
-		}
-		written += 1
-		i = next + 1
-	}
-}