Implement Credo software design suggestions

lib/mobilizon/actors/actors.ex

@@ -16,6 +16,8 @@ defmodule Mobilizon.Actors do
 
   alias Mobilizon.Federation.ActivityPub
 
+  alias Mobilizon.Web.Upload
+
   require Logger
 
   defenum(ActorType, :actor_type, [
@@ -755,7 +757,7 @@ defmodule Mobilizon.Actors do
 
   @spec safe_remove_file(String.t(), Actor.t()) :: {:ok, Actor.t()}
   defp safe_remove_file(url, %Actor{} = actor) do
-    case Mobilizon.Web.Upload.remove(url) do
+    case Upload.remove(url) do
       {:ok, _value} ->
         {:ok, actor}
 
@@ -774,7 +776,7 @@ defmodule Mobilizon.Actors do
         with %Ecto.Changeset{changes: %{url: new_url}} <- changes[key],
              %{url: old_url} <- data |> Map.from_struct() |> Map.get(key),
              false <- new_url == old_url do
-          Mobilizon.Web.Upload.remove(old_url)
+          Upload.remove(old_url)
         end
       end
     end)