remove duplicate module

config/test.exs

@@ -118,6 +118,8 @@
   streaming_enabled: true,
   public_endpoint: nil
 
+config :tzdata, :autoupdate, :disabled
+
 if File.exists?("./config/test.secret.exs") do
   import_config "test.secret.exs"
 else

lib/pleroma/config/utils.ex

-# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
-# SPDX-License-Identifier: AGPL-3.0-only
-
-defmodule Pleroma.Config.Utils do
-  alias Pleroma.Config
-
-  def instance_name, do: Config.get([:instance, :name])
-
-  defp instance_notify_email do
-    Config.get([:instance, :notify_email]) || Config.get([:instance, :email])
-  end
-
-  def sender do
-    {instance_name(), instance_notify_email()}
-  end
-end

lib/pleroma/user/welcome_email.ex

@@ -11,7 +11,7 @@ defmodule Pleroma.User.WelcomeEmail do
   alias Pleroma.Emails
   alias Pleroma.User
 
-  import Pleroma.Config.Utils, only: [instance_name: 0]
+  import Pleroma.Config.Helpers, only: [instance_name: 0]
 
   @spec enabled?() :: boolean()
   def enabled?, do: Config.get([:welcome, :email, :enabled], false)