Fix specs.

lib/pleroma/user.ex

@@ -1144,7 +1144,6 @@ def delete_user_activities(%User{ap_id: ap_id} = user) do
     stream =
       ap_id
       |> Activity.query_by_actor()
-      |> Activity.with_preloaded_object()
       |> Repo.stream()
 
     Repo.transaction(fn -> Enum.each(stream, &delete_activity(&1)) end, timeout: :infinity)

test/web/ostatus/ostatus_test.exs

@@ -407,7 +407,7 @@ test "find_make_or_update_user takes an author element and returns an updated us
       {:ok, user} = OStatus.find_or_make_user(uri)
       old_name = user.name
       old_bio = user.bio
-      change = Ecto.Changeset.change(user, %{avatar: nil, bio: nil, old_name: nil})
+      change = Ecto.Changeset.change(user, %{avatar: nil, bio: nil, name: nil})
 
       {:ok, user} = Repo.update(change)
       refute user.avatar