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

third_party/lzma/v4_65/files/CPP/7zip/IProgress.h

Index: third_party/lzma/v4_65/files/CPP/7zip/IProgress.h
diff --git a/third_party/lzma/v4_65/files/CPP/7zip/IProgress.h b/third_party/lzma/v4_65/files/CPP/7zip/IProgress.h
deleted file mode 100644
index d6093f17330c8fb6a2fc8fe9dd480cbd4d642706..0000000000000000000000000000000000000000
--- a/third_party/lzma/v4_65/files/CPP/7zip/IProgress.h
+++ /dev/null
@@ -1,33 +0,0 @@
-// Interface/IProgress.h
-
-#ifndef __IPROGRESS_H
-#define __IPROGRESS_H
-
-#include "../Common/MyUnknown.h"
-#include "../Common/Types.h"
-
-#include "IDecl.h"
-
-#define INTERFACE_IProgress(x) \
-  STDMETHOD(SetTotal)(UInt64 total) x; \
-  STDMETHOD(SetCompleted)(const UInt64 *completeValue) x; \
-
-DECL_INTERFACE(IProgress, 0, 5)
-{
-  INTERFACE_IProgress(PURE)
-};
-
-/*
-// {23170F69-40C1-278A-0000-000000050002}
-DEFINE_GUID(IID_IProgress2,
-0x23170F69, 0x40C1, 0x278A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x02);
-MIDL_INTERFACE("23170F69-40C1-278A-0000-000000050002")
-IProgress2: public IUnknown
-{
-public:
-  STDMETHOD(SetTotal)(const UInt64 *total) PURE;
-  STDMETHOD(SetCompleted)(const UInt64 *completeValue) PURE;
-};
-*/
-
-#endif