diff --git a/embedding/browser/activex/src/control/MozillaControl.cpp b/embedding/browser/activex/src/control/MozillaControl.cpp
index 4f2dac891998..3330a38d4a07 100644
--- a/embedding/browser/activex/src/control/MozillaControl.cpp
+++ b/embedding/browser/activex/src/control/MozillaControl.cpp
@@ -33,9 +33,7 @@
 #include "MozillaControl.h"
 
 #include "MozillaControl_i.c"
-#ifdef USE_CONTROL
 #include "MozillaBrowser.h"
-#endif
 
 CComModule _Module;
 
diff --git a/embedding/browser/activex/src/control/StdAfx.h b/embedding/browser/activex/src/control/StdAfx.h
index d65fff95d4f7..eef75d8a2595 100644
--- a/embedding/browser/activex/src/control/StdAfx.h
+++ b/embedding/browser/activex/src/control/StdAfx.h
@@ -49,10 +49,6 @@ extern CComModule _Module;
 #include <docobj.h>
 #include <winsock2.h>
 
-#ifdef USE_PLUGIN
-#include <activscp.h>
-#endif
-
 // STL headers
 #include <vector>
 #include <list>
diff --git a/embedding/browser/activex/src/control/guids.cpp b/embedding/browser/activex/src/control/guids.cpp
index 1f4b8b45a043..b116209c25ad 100644
--- a/embedding/browser/activex/src/control/guids.cpp
+++ b/embedding/browser/activex/src/control/guids.cpp
@@ -38,9 +38,3 @@ NS_DEFINE_IID(kIWebShellContainerIID, NS_IWEB_SHELL_CONTAINER_IID);
 NS_DEFINE_IID(kIStreamObserverIID, NS_ISTREAMOBSERVER_IID);
 NS_DEFINE_IID(kIDocumentLoaderObserverIID, NS_IDOCUMENT_LOADER_OBSERVER_IID);
 NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
-
-#ifdef USE_PLUGIN
-NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
-NS_DEFINE_IID(kIPluginIID, NS_IPLUGIN_IID);
-NS_DEFINE_IID(kIPluginInstanceIID, NS_IPLUGININSTANCE_IID);
-#endif