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

third_party/lzma/v4_65/files/CPP/7zip/Common/LockedStream.cpp

Index: third_party/lzma/v4_65/files/CPP/7zip/Common/LockedStream.cpp
diff --git a/third_party/lzma/v4_65/files/CPP/7zip/Common/LockedStream.cpp b/third_party/lzma/v4_65/files/CPP/7zip/Common/LockedStream.cpp
deleted file mode 100644
index f05601cb6dc307970bc1d04de34f76b2cf5ea950..0000000000000000000000000000000000000000
--- a/third_party/lzma/v4_65/files/CPP/7zip/Common/LockedStream.cpp
+++ /dev/null
@@ -1,23 +0,0 @@
-// LockedStream.cpp
-
-#include "StdAfx.h"
-
-#include "LockedStream.h"
-
-HRESULT CLockedInStream::Read(UInt64 startPos, void *data, UInt32 size,
-  UInt32 *processedSize)
-{
-  NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
-  RINOK(_stream->Seek(startPos, STREAM_SEEK_SET, NULL));
-  return _stream->Read(data, size, processedSize);
-}
-
-STDMETHODIMP CLockedSequentialInStreamImp::Read(void *data, UInt32 size, UInt32 *processedSize)
-{
-  UInt32 realProcessedSize = 0;
-  HRESULT result = _lockedInStream->Read(_pos, data, size, &realProcessedSize);
-  _pos += realProcessedSize;
-  if (processedSize != NULL)
-    *processedSize = realProcessedSize;
-  return result;
-}