disable referenced-by and references links in docs

git-svn-id: https://svn.osgeo.org/gdal/trunk/gdal@25480 f0d54148-0727-0410-94bb-9a71ac55c965
refresh

git-svn-id: https://svn.osgeo.org/gdal/trunk/gdal@25481 f0d54148-0727-0410-94bb-9a71ac55c965