fix doc

Author: MarcelloPerathoner

docs/lua-types.dox

@@ -433,20 +433,6 @@ class AreaManager
     Call this functions inside @ref process_way. If this way is a member of a
     relation that was registered for meshing, those relations will be returned.
 
-    Since the member ways of a multipolygon relation are as a rule untagged, and
-    since OSRM discards untagged ways, you have to copy at least the defining tag
-    (and maybe the name tags) from the relation to the way.
-
-    Example:
-
-    ```lua
-    for _, rel_id in pairs(area_manager:get_relations(way)) do
-      local rel = relations:relation(rel_id)
-      data.highway = rel:get_value_by_key('highway')
-      WayHandlers.names(profile, rel, result, data)
-    end
-    ```
-
     @return A Table of Relation objects.
     */
     Table get_relations(Way);