Fix compile errors on 1.4.5

lib/pleroma/stats.ex

 defmodule Pleroma.Stats do
-  use Agent
   import Ecto.Query
   alias Pleroma.{User, Repo, Activity}
 

lib/pleroma/web/chat_channel.ex

@@ -24,7 +24,6 @@ def handle_in("new_msg", %{"text" => text}, %{assigns: %{user_name: user_name}}
 end
 
 defmodule Pleroma.Web.ChatChannel.ChatChannelState do
-  use Agent
   @max_messages 20
 
   def start_link do

[eal]

lol

[lain]

It wasn't there in 1.4.5, although I guess this has some effects on them being in the supervision tree...

[eal]

Should we just make them genservers?

[lain]

I don't really understand how it all works, what it's doing now vs what would change if those were GenServers. If you know, change it :)