Removed WXWIN_COMPATIBILITY_2_2 together with code guarded by it.

Changed default for WXWIN_COMPATIBILITY_2_4 to 0.
  Added WXWIN_COMPATIBILITY_2_6 (defaults to 1).
  Ran build/update-setup-h.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35858 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/process.h

@@ -101,11 +101,6 @@ public:
                         wxInputStream *errStream);
 #endif // wxUSE_STREAMS
 
-    // for backwards compatibility only, don't use
-#if WXWIN_COMPATIBILITY_2_2
-    wxDEPRECATED( wxProcess(wxEvtHandler *parent, bool redirect) );
-#endif // WXWIN_COMPATIBILITY_2_2
-
 protected:
     void Init(wxEvtHandler *parent, int id, int flags);