Remove VCR playback functionality for now

This has never been helpful to me so i don't feel bad.

farmbot_firmware/lib/farmbot_firmware/vcr.ex

@@ -1,63 +0,0 @@
-defmodule FarmbotFirmware.VCR do
-  @moduledoc """
-  Helpers for working with Firmware tapes
-  """
-  alias FarmbotFirmware.GCODE
-
-  @doc "Convert a .txt file to Elixir terms"
-  def to_elixir!(path) do
-    File.stream!(path)
-    |> Stream.map(&split_decode/1)
-    |> Enum.to_list()
-  end
-
-  @doc "Play a tape back on a server"
-  def playback!(path, firmware_server \\ FarmbotFirmware) do
-    path
-    |> to_elixir!()
-    |> Enum.reject(fn
-      {:in, _timestamp, _type, _code} -> true
-      {:out, _timestamp, _type, _code} -> false
-    end)
-    |> Enum.each(fn {:out, _timestamp, type, code} ->
-      apply(FarmbotFirmware, type, [firmware_server, code])
-    end)
-  end
-
-  defp split_decode(data) do
-    data
-    |> do_split()
-    |> do_decode()
-  end
-
-  defp do_split(data) do
-    data
-    |> String.trim()
-    |> String.split(" ")
-  end
-
-  defp do_decode([direction, timestamp | rest]) do
-    direction = decode_direction(direction)
-    timestamp = decode_timestamp(timestamp)
-
-    case GCODE.decode(Enum.join(rest, " ")) do
-      {_, {kind, _args}} = code
-      when kind not in [
-             :parameter_read,
-             :status_read,
-             :pin_read,
-             :end_stops_read,
-             :position_read,
-             :software_version_read
-           ] ->
-        {direction, timestamp, :command, code}
-
-      code ->
-        {direction, timestamp, :request, code}
-    end
-  end
-
-  defp decode_direction("<"), do: :in
-  defp decode_direction(">"), do: :out
-  defp decode_timestamp(timestamp), do: String.to_integer(timestamp)
-end

farmbot_firmware/test/vcr_test.exs

@@ -1,34 +0,0 @@
-defmodule FarmbotFirmware.VCRTest do
-  use ExUnit.Case
-  alias FarmbotFirmware.StubTransport
-  alias FarmbotFirmware.VCR
-
-  test "saves a vcr when starting a server" do
-    vcr_path = path()
-    {:ok, server} = FarmbotFirmware.start_link([transport: StubTransport, vcr_path: vcr_path], [])
-    :ok = FarmbotFirmware.exit_vcr_mode(server)
-    assert File.exists?(vcr_path)
-  end
-
-  test "saves a vcr at runtime" do
-    vcr_path = path()
-    {:ok, server} = FarmbotFirmware.start_link([transport: StubTransport], [])
-    refute File.exists?(vcr_path)
-    :ok = FarmbotFirmware.enter_vcr_mode(server, vcr_path)
-    :ok = FarmbotFirmware.exit_vcr_mode(server)
-    assert File.exists?(vcr_path)
-  end
-
-  test "plays back a vcr" do
-    vcr_path = path()
-    {:ok, server} = FarmbotFirmware.start_link([transport: StubTransport, vcr_path: vcr_path], [])
-    FarmbotFirmware.command(server, {:pin_write, [p: 13, v: 1]})
-    FarmbotFirmware.request(server, {:pin_read, [p: 13]})
-    :ok = FarmbotFirmware.exit_vcr_mode(server)
-    VCR.playback!(vcr_path)
-  end
-
-  defp path do
-    "/tmp/#{:os.system_time()}.vcr.txt"
-  end
-end