Remove a couple of files that were accidentally introduced in the last commit

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

lib/plugin/supervisor.ex

@@ -1,40 +0,0 @@
-defmodule Omnibot.Plugin.Supervisor do
-  defmacro __using__(_opts) do
-    quote do
-      import Omnibot.Plugin.Supervisor
-      alias Omnibot.Plugin
-      use Supervisor
-
-      @behaviour Omnibot.Plugin.Supervisor
-
-      def start_link(opts) do
-        Supervisor.start_link(__MODULE__, opts[:cfg], opts)
-      end
-
-      def init(_cfg) do
-        Supervisor.init(children(), strategy: :one_for_one)
-      end
-
-    end
-  end
-
-  @callback children() :: [any]
-end
-
-# TODO :
-#   - figure out the best way to allow for including of supervisors and agents into a bot module
-#     - have to `use Agent` both places, this is not optimal
-#       - probably just lacks child_spec/1 ?
-#       - Do away with actual Plugin.Agent set of functions (outside of macro),
-#         and make it behaviours + `use Plugin.Agent` instead?
-# Allow for ergonomic supervisor declarations, maybe like:
-#
-# Plugin.supervisor [
-#   SomeAgent,
-#   SomeGenSever,
-#   SomeWorker,
-# ], strategy: one_for_all
-#
-#
-# And it implements all of the stuff for you? This may be too broad for how I'm doing things
-#   - rename MODULES to PLUGINS