remove the outdated functor example for exception analysis

Author: tsnobip

pages/docs/manual/v12.0.0/editor-plugins.mdx

@@ -112,16 +112,7 @@ try (foo()) { | exn => throw(exn) }
 ```
 
 - Uses of e.g. `List.hd` are interpreted as belonging to the standard library. If you re-define `List` in the local scope, the analysis it will think it's dealing with `List` from the standard library.
-- There is no special support for functors. So with `Hashtbl.Make(...)` the builtin model will not apply. So the analysis won't report that the following can throw `Not_found`:
-
-```rescript
-module StringHash =
-  Hashtbl.Make({
-    include String
-    let hash = Hashtbl.hash
-  })
-let specializedHash = tbl => StringHash.find(tbl, "abc")
-```
+- There is no special support for functors.
 
 ### Guide