[sim] send broadcasted messages to all aircraft

Previously, the broadcasted messages was no sent to the aircraft with the same ID.
I suppose this was to not send ACINFO to himself, but this should be
filtered by datalink parser in the end.
It also solves the rc_datalink issue in sim.

sw/simulator/sitl.ml

@@ -183,7 +183,7 @@ module Make (A:Data.MISSION) (FM: FlightModel.SIG) = struct
     let ac_id = Pprz.int_assoc "ac_id" vs in
     match link_mode with
       Pprz.Forwarded when ac_id = !my_id -> if dl_button#active then set ()
-    | Pprz.Broadcasted when ac_id <> !my_id -> if dl_button#active then set ()
+    | Pprz.Broadcasted -> if dl_button#active then set ()
     | _ -> ()
 
   let message_bind = fun name link_mode ->