Remove old task to migrate data

apps/explorer/lib/mix/tasks/migrate.transaction.info.ex

@@ -1,32 +0,0 @@
-defmodule Mix.Tasks.Migrate.Transaction.Info do
-  use Mix.Task
-
-  alias Ecto.Adapters.SQL
-  alias Explorer.Repo
-
-  @shortdoc "Migrates transaction info to internal transaction"
-
-  @moduledoc """
-  This task is reponsible to populate the `transaction_index` and
-  `block_number` at the `internal_transactions` table, using the
-  `transactions` info.
-  """
-
-  def run(_args) do
-    {:ok, _} = Application.ensure_all_started(:explorer)
-
-    SQL.query(
-      Repo,
-      """
-        UPDATE internal_transactions
-        SET
-          block_number = transactions.block_number,
-          transaction_index = transactions.index
-        FROM transactions
-        WHERE internal_transactions.transaction_hash = transactions.hash;
-      """,
-      [],
-      timeout: :infinity
-    )
-  end
-end