Remove router.ex and move behavior to Omnibot.Irc

Omnibot.Router was useful when it was used for actually routing
messages. However, its responsibilities have spread such that it's just
a single function at this point. So this single function has been moved
to Omnibot.Irc as a private function instead.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

lib/irc.ex

@@ -30,6 +30,12 @@ defmodule Omnibot.Irc do
 
   def sync_channels(irc), do: GenServer.cast(irc, :sync_channels)
 
+  defp route_msg(irc, msg) do
+    channel = Msg.channel(msg)
+    State.channel_modules(channel)
+      |> Enum.each(fn {module, _} -> module.on_msg(irc, msg) end)
+  end
+
   ## Server callbacks
 
   @impl true
@@ -91,7 +97,7 @@ defmodule Omnibot.Irc do
     irc = self()
     {:ok, _task} = Task.Supervisor.start_child(
       Omnibot.RouterSupervisor,
-      fn -> Omnibot.Router.route(irc, msg) end
+      fn -> route_msg(irc, msg) end
     )
     {:noreply, socket}
   end

lib/router.ex

@@ -1,48 +0,0 @@
-defmodule Omnibot.Router do
-  require Logger
-  alias Omnibot.{Irc.Msg, State}
-  
-  def route(irc, msg) do
-    channel = Msg.channel(msg)
-    State.channel_modules(channel)
-      |> Enum.each(fn {module, _} -> module.on_msg(irc, msg) end)
-  end
-
-  #def handle(_irc, :privmsg, msg) do
-  #  [channel | _params] = msg.params
-
-  #  # Find modules that want this message
-  #  State.cfg()
-  #    |> Config.channel_modules(channel)
-  #    |> Enum.each(fn {module, _} -> module.on_msg(msg) end)
-  #end
-
-  #def handle(_irc, :join, msg: %Msg {params: [channel | _]}) do
-  #  State.cfg()
-  #    |> Config.channel_modules(channel)
-  #    |> Enum.each(fn {module, _} -> module.on_join(msg) end)
-  #end
-
-  #def handle(irc, :kick, msg: %Msg {params: [channel | _]}) do
-  #  State.cfg()
-  #    |> Config.channel_modules(channel)
-  #    |> Enum.each(fn {module, _} -> module.on_kick(msg) end)
-  #end
-
-  #def handle(_irc, :part, %Msg {prefix: %Msg.Prefix{nick: nick}, params: [channel | _]}) do
-  #  cfg = State.cfg()
-  #  if nick == cfg.nick do
-  #    State.remove_channel(State, channel)
-  #  end
-  #end
-
-  #def handle(irc, :ping, msg) do
-  #  cfg = State.cfg()
-  #  reply = Config.msg(cfg, "PONG", msg.params)
-  #  Irc.send_msg(irc, reply)
-  #end
-
-  #def handle(irc, :welcome, _msg) do
-  #  Irc.sync_channels(irc)
-  #end
-end