Don't use wxMSW version of wxNonOwnedWindow at all under WinCE.

This class becomes completely trivial under WinCE as its functionality
(setting the window shape) can't be implemented under this platform, so just
don't compile it at all there.

This both (slightly) reduces the amount of #if checks and should make the code
(slightly) smaller.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69434 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/nonownedwnd.cpp

@@ -23,6 +23,9 @@
     #pragma hdrstop
 #endif
 
+// This class can't be implemented and hence is not used under Win CE.
+#ifndef __WXWINCE__
+
 #ifndef WX_PRECOMP
     #include "wx/frame.h"       // Only for wxFRAME_SHAPED.
     #include "wx/region.h"
@@ -35,8 +38,6 @@
 // wxNonOwnedWindow implementation
 // ============================================================================
 
-#ifndef __WXWINCE__
-
 bool wxNonOwnedWindow::SetShape(const wxRegion& region)
 {
     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,