Remove ZLib codec support from chromoting host and client.

remoting/base/compressor_zlib.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef REMOTING_BASE_COMPRESSOR_ZLIB_H_
-#define REMOTING_BASE_COMPRESSOR_ZLIB_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "remoting/base/compressor.h"
-
-typedef struct z_stream_s z_stream;
-
-namespace remoting {
-
-// A lossless compressor using zlib.
-class CompressorZlib : public Compressor {
- public:
-  CompressorZlib();
-  virtual ~CompressorZlib();
-
-  // Compressor implementations.
-  virtual bool Process(const uint8* input_data,
-                       int input_size,
-                       uint8* output_data,
-                       int output_size,
-                       CompressorFlush flush,
-                       int* consumed,
-                       int* written) OVERRIDE;
-
-  virtual void Reset() OVERRIDE;
-
- private:
-  scoped_ptr<z_stream> stream_;
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_BASE_COMPRESSOR_ZLIB_H_