Remove outdated test

Author: josevalim

lib/elixir/test/elixir/macro_test.exs

@@ -136,12 +136,6 @@ defmodule MacroTest do
     test "does not add context to quote" do
       assert Macro.escape({:quote, [], [[do: :foo]]}) == {:{}, [], [:quote, [], [[do: :foo]]]}
     end
-
-    test "inspects container when a reference cannot be escaped" do
-      assert_raise ArgumentError, ~r"~r/foo/ contains a reference", fn ->
-        Macro.escape(%{~r/foo/ | re_pattern: make_ref()})
-      end
-    end
   end
 
   describe "expand_once/2" do