Include wx/module.h according to precompiled headers of wx/wx.h (with other minor cleaning).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40943 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/clipcmn.cpp

@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        common/clipcmn.cpp
+// Name:        src/common/clipcmn.cpp
 // Purpose:     common (to all ports) wxClipboard functions
 // Author:      Robert Roebling
 // Modified by:
@@ -24,11 +24,14 @@
     #pragma hdrstop
 #endif
 
-#include "wx/clipbrd.h"
-#include "wx/module.h"
-
 #if wxUSE_CLIPBOARD
 
+#include "wx/clipbrd.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/module.h"
+#endif
+
 static wxClipboard *gs_clipboard = NULL;
 
 /*static*/ wxClipboard *wxClipboardBase::Get()