Remove unused support for initial peers

lib/agent.ex

@@ -11,16 +11,9 @@ defmodule Frajtano.Agent do
     {
       :ok,
       %{},
-      {:continue, :init_peers}
     }
   end
 
-  @impl true
-  def handle_continue(:init_peers, state) do
-    for peer <- Application.fetch_env!(:frajtano, :initial_peers), do: {:ok, _} = Peer.start(peer)
-    {:noreply, state}
-  end
-
   # select: list of specs, where specs are a tuple of match, guards, and outputs
   # match is {key, pid, value}, :"$1" is a match variable
   def peer_paths() do