Remove unnecessary header dependencies. Fix resulting compilation

problems for wxMSW, wxGTK, wxMotif, wxX11 and wxMac in default
configuration. Non-default configurations will probably need some more
fixes.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@19172 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gdicmn.h

@@ -20,13 +20,10 @@
     #pragma interface "gdicmn.h"
 #endif
 
-#include "wx/object.h"
-#include "wx/list.h"
-#include "wx/hash.h"
-#include "wx/string.h"
 #include "wx/setup.h"
-#include "wx/colour.h"
-#include "wx/font.h"
+#include "wx/list.h"
+#include "wx/string.h"
+#include "wx/fontenc.h"
 
 // ---------------------------------------------------------------------------
 // forward declarations