Fix unreferenced function warning with wxUSE_DRAG_AND_DROP disabled

src/msw/window.cpp

@@ -1746,6 +1746,8 @@ void wxWindowMSW::Update()
 // drag and drop
 // ---------------------------------------------------------------------------
 
+#if wxUSE_DRAG_AND_DROP
+
 #if wxUSE_STATBOX
 
 // we need to lower the sibling static boxes so controls contained within can be
@@ -1777,8 +1779,6 @@ static inline void AdjustStaticBoxZOrder(wxWindow * WXUNUSED(parent))
 
 #endif // wxUSE_STATBOX/!wxUSE_STATBOX
 
-#if wxUSE_DRAG_AND_DROP
-
 void wxWindowMSW::SetDropTarget(wxDropTarget *pDropTarget)
 {
     if ( m_dropTarget != 0 ) {