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

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

Index: third_party/lzma/v4_65/files/CPP/7zip/Common/VirtThread.cpp
diff --git a/third_party/lzma/v4_65/files/CPP/7zip/Common/VirtThread.cpp b/third_party/lzma/v4_65/files/CPP/7zip/Common/VirtThread.cpp
deleted file mode 100644
index f12581add13c0df93bb111657d10359a2808c78a..0000000000000000000000000000000000000000
--- a/third_party/lzma/v4_65/files/CPP/7zip/Common/VirtThread.cpp
+++ /dev/null
@@ -1,45 +0,0 @@
-// VirtThread.cpp
-
-#include "StdAfx.h"
-
-#include "VirtThread.h"
-
-static THREAD_FUNC_DECL CoderThread(void *p)
-{
-  for (;;)
-  {
-    CVirtThread *t = (CVirtThread *)p;
-    t->StartEvent.Lock();
-    if (t->ExitEvent)
-      return 0;
-    t->Execute();
-    t->FinishedEvent.Set();
-  }
-}
-
-WRes CVirtThread::Create()
-{
-  RINOK(StartEvent.CreateIfNotCreated());
-  RINOK(FinishedEvent.CreateIfNotCreated());
-  StartEvent.Reset();
-  FinishedEvent.Reset();
-  ExitEvent = false;
-  if (Thread.IsCreated())
-    return S_OK;
-  return Thread.Create(CoderThread, this);
-}
-
-void CVirtThread::Start()
-{
-  ExitEvent = false;
-  StartEvent.Set();
-}
-
-CVirtThread::~CVirtThread()
-{
-  ExitEvent = true;
-  if (StartEvent.IsCreated())
-    StartEvent.Set();
-  Thread.Wait();
-}
-