Keep only base/extractor.[cc|h].

third_party/lzma/v4_65/files/CPP/7zip/Archive/Common/OutStreamWithCRC.h

Index: third_party/lzma/v4_65/files/CPP/7zip/Archive/Common/OutStreamWithCRC.h
diff --git a/third_party/lzma/v4_65/files/CPP/7zip/Archive/Common/OutStreamWithCRC.h b/third_party/lzma/v4_65/files/CPP/7zip/Archive/Common/OutStreamWithCRC.h
deleted file mode 100644
index a034ee9bd53202a34c41122de16405d85d4d4a09..0000000000000000000000000000000000000000
--- a/third_party/lzma/v4_65/files/CPP/7zip/Archive/Common/OutStreamWithCRC.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// OutStreamWithCRC.h
-
-#ifndef __OUT_STREAM_WITH_CRC_H
-#define __OUT_STREAM_WITH_CRC_H
-
-#include "../../../Common/MyCom.h"
-#include "../../IStream.h"
-
-extern "C"
-{
-#include "../../../../C/7zCrc.h"
-}
-
-class COutStreamWithCRC:
-  public ISequentialOutStream,
-  public CMyUnknownImp
-{
-  CMyComPtr<ISequentialOutStream> _stream;
-  UInt64 _size;
-  UInt32 _crc;
-  bool _calculate;
-public:
-  MY_UNKNOWN_IMP
-  STDMETHOD(Write)(const void *data, UInt32 size, UInt32 *processedSize);
-  void SetStream(ISequentialOutStream *stream) { _stream = stream; }
-  void ReleaseStream() { _stream.Release(); }
-  void Init(bool calculate = true)
-  {
-    _size = 0;
-    _calculate = calculate;
-    _crc = CRC_INIT_VAL;
-  }
-  void InitCRC() { _crc = CRC_INIT_VAL; }
-  UInt64 GetSize() const { return _size; }
-  UInt32 GetCRC() const { return CRC_GET_DIGEST(_crc); }
-};
-
-#endif