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

third_party/lzma/v4_65/files/CPP/7zip/Archive/7z/7zSpecStream.h

Index: third_party/lzma/v4_65/files/CPP/7zip/Archive/7z/7zSpecStream.h
diff --git a/third_party/lzma/v4_65/files/CPP/7zip/Archive/7z/7zSpecStream.h b/third_party/lzma/v4_65/files/CPP/7zip/Archive/7z/7zSpecStream.h
deleted file mode 100644
index 2e26efd5cbd81a5c811c6140674523cedb30e6ed..0000000000000000000000000000000000000000
--- a/third_party/lzma/v4_65/files/CPP/7zip/Archive/7z/7zSpecStream.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// 7zSpecStream.h
-
-#ifndef __7Z_SPEC_STREAM_H
-#define __7Z_SPEC_STREAM_H
-
-#include "../../IStream.h"
-#include "../../ICoder.h"
-#include "../../../Common/MyCom.h"
-
-class CSequentialInStreamSizeCount2:
-  public ISequentialInStream,
-  public ICompressGetSubStreamSize,
-  public CMyUnknownImp
-{
-  CMyComPtr<ISequentialInStream> _stream;
-  CMyComPtr<ICompressGetSubStreamSize> _getSubStreamSize;
-  UInt64 _size;
-public:
-  void Init(ISequentialInStream *stream)
-  {
-    _stream = stream;
-    _getSubStreamSize = 0;
-    _stream.QueryInterface(IID_ICompressGetSubStreamSize, &_getSubStreamSize);
-    _size = 0;
-  }
-  UInt64 GetSize() const { return _size; }
-
-  MY_UNKNOWN_IMP1(ICompressGetSubStreamSize)
-
-  STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
-
-  STDMETHOD(GetSubStreamSize)(UInt64 subStream, UInt64 *value);
-};
-
-#endif