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

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39205 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/window.cpp

@@ -23,6 +23,7 @@
     #include "wx/utils.h"
     #include "wx/frame.h"
     #include "wx/dcclient.h"
+    #include "wx/menu.h"
 #endif
 
 #include "wx/layout.h"
@@ -47,7 +48,6 @@
     #include "wx/textctrl.h"
 #endif
 
-#include "wx/menu.h"
 #include "wx/statusbr.h"
 #include "wx/settings.h"
 #include "wx/fontutil.h"