1 files changed, 0 insertions, 110 deletions
diff --git a/src/pkg/archive/zip/register.go b/src/pkg/archive/zip/register.go
deleted file mode 100644
index 4211ec7af..000000000
--- a/src/pkg/archive/zip/register.go
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package zip
-
-import (
-	"compress/flate"
-	"errors"
-	"io"
-	"io/ioutil"
-	"sync"
-)
-
-// A Compressor returns a compressing writer, writing to the
-// provided writer. On Close, any pending data should be flushed.
-type Compressor func(io.Writer) (io.WriteCloser, error)
-
-// Decompressor is a function that wraps a Reader with a decompressing Reader.
-// The decompressed ReadCloser is returned to callers who open files from
-// within the archive.  These callers are responsible for closing this reader
-// when they're finished reading.
-type Decompressor func(io.Reader) io.ReadCloser
-
-var flateWriterPool sync.Pool
-
-func newFlateWriter(w io.Writer) io.WriteCloser {
-	fw, ok := flateWriterPool.Get().(*flate.Writer)
-	if ok {
-		fw.Reset(w)
-	} else {
-		fw, _ = flate.NewWriter(w, 5)
-	}
-	return &pooledFlateWriter{fw: fw}
-}
-
-type pooledFlateWriter struct {
-	mu sync.Mutex // guards Close and Write
-	fw *flate.Writer
-}
-
-func (w *pooledFlateWriter) Write(p []byte) (n int, err error) {
-	w.mu.Lock()
-	defer w.mu.Unlock()
-	if w.fw == nil {
-		return 0, errors.New("Write after Close")
-	}
-	return w.fw.Write(p)
-}
-
-func (w *pooledFlateWriter) Close() error {
-	w.mu.Lock()
-	defer w.mu.Unlock()
-	var err error
-	if w.fw != nil {
-		err = w.fw.Close()
-		flateWriterPool.Put(w.fw)
-		w.fw = nil
-	}
-	return err
-}
-
-var (
-	mu sync.RWMutex // guards compressor and decompressor maps
-
-	compressors = map[uint16]Compressor{
-		Store:   func(w io.Writer) (io.WriteCloser, error) { return &nopCloser{w}, nil },
-		Deflate: func(w io.Writer) (io.WriteCloser, error) { return newFlateWriter(w), nil },
-	}
-
-	decompressors = map[uint16]Decompressor{
-		Store:   ioutil.NopCloser,
-		Deflate: flate.NewReader,
-	}
-)
-
-// RegisterDecompressor allows custom decompressors for a specified method ID.
-func RegisterDecompressor(method uint16, d Decompressor) {
-	mu.Lock()
-	defer mu.Unlock()
-
-	if _, ok := decompressors[method]; ok {
-		panic("decompressor already registered")
-	}
-	decompressors[method] = d
-}
-
-// RegisterCompressor registers custom compressors for a specified method ID.
-// The common methods Store and Deflate are built in.
-func RegisterCompressor(method uint16, comp Compressor) {
-	mu.Lock()
-	defer mu.Unlock()
-
-	if _, ok := compressors[method]; ok {
-		panic("compressor already registered")
-	}
-	compressors[method] = comp
-}
-
-func compressor(method uint16) Compressor {
-	mu.RLock()
-	defer mu.RUnlock()
-	return compressors[method]
-}
-
-func decompressor(method uint16) Decompressor {
-	mu.RLock()
-	defer mu.RUnlock()
-	return decompressors[method]
-}