Remove the wxPython-only doc snippets from the C++ docs

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71170 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/region.h

@@ -115,10 +115,6 @@ public:
 
     /**
         Increment operator. Increments the iterator to the next region.
-
-        @beginWxPythonOnly
-        A wxPython alias for this operator is called Next.
-        @endWxPythonOnly
     */
     wxRegionIterator& operator ++();