remove Repo.isolated_transaction/2

lib/philomena/repo.ex

@@ -1,27 +1,7 @@
 defmodule Philomena.Repo do
-  alias Ecto.Multi
-
   use Ecto.Repo,
     otp_app: :philomena,
     adapter: Ecto.Adapters.Postgres
 
   use Scrivener, page_size: 250
-
-  @levels %{
-    read_committed: "READ COMMITTED",
-    repeatable_read: "REPEATABLE READ",
-    serializable: "SERIALIZABLE"
-  }
-
-  def isolated_transaction(%Multi{} = multi, level) do
-    Multi.append(
-      Multi.new()
-      |> Multi.run(:isolate, fn repo, _chg ->
-        repo.query!("SET TRANSACTION ISOLATION LEVEL #{@levels[level]}")
-        {:ok, nil}
-      end),
-      multi
-    )
-    |> Philomena.Repo.transaction()
-  end
 end