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/html/htmltag.h

@@ -110,12 +110,6 @@ public:
     // Returns string containing all params.
     wxString GetAllParams() const;
 
-#if WXWIN_COMPATIBILITY_2_2
-    // return true if this is ending tag (</something>) or false
-    // if it isn't (<something>)
-    wxDEPRECATED( bool IsEnding() const );
-#endif
-
     // return true if this there is matching ending tag
     inline bool HasEnding() const {return m_End1 >= 0;}