ignore incoming federated private comments

lib/federation/activity_stream/converter/comment.ex

@@ -50,6 +50,7 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Comment do
         Logger.debug("Inserting full comment")
         Logger.debug(inspect(object))
 
+
         data = %{
           text: object["content"],
           url: object["id"],

lib/federation/activity_stream/converter/event.ex

@@ -230,8 +230,6 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Event do
     end
   end
 
-  @ap_public "https://www.w3.org/ns/activitystreams#Public"
-
   defp get_visibility(object), do: if(@ap_public in object["to"], do: :public, else: :unlisted)
 
   @spec date_to_string(DateTime.t() | nil) :: String.t()