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

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40345 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/os2/clipbrd.cpp

@@ -25,6 +25,7 @@
     #include "wx/utils.h"
     #include "wx/intl.h"
     #include "wx/log.h"
+    #include "wx/dataobj.h"
 #endif
 
 #if wxUSE_METAFILE
@@ -37,11 +38,6 @@
 
 // wxDataObject is tied to OLE/drag and drop implementation,
 // therefore so is wxClipboard :-(
-#if wxUSE_DRAG_AND_DROP
-    #include "wx/dataobj.h"
-
-//    static bool wxSetClipboardData(wxDataObject *data);
-#endif
 
 // ===========================================================================
 // implementation

src/os2/dataobj.cpp

@@ -22,13 +22,14 @@
 
 #if wxUSE_DATAOBJ
 
+#include "wx/dataobj.h"
+
 #ifndef WX_PRECOMP
     #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/image.h"
 #endif
 
-#include "wx/dataobj.h"
 #include "wx/mstream.h"
 
 #include "wx/os2/private.h"