Revert "Fetch deprecation warnings from chunk"

This reverts commit 1b52a91cd27ea9388853e9aaddbbe9351f2864ba.

1 files changed, 6 insertions, 6 deletions

diff --git a/lib/elixir/lib/module/checker.ex b/lib/elixir/lib/module/checker.ex
index c4bb065ab..b8d4ca777 100644
--- a/lib/elixir/lib/module/checker.ex
+++ b/lib/elixir/lib/module/checker.ex
@@ -110,13 +110,13 @@ defmodule Module.Checker do
   end
 
   defp deprecated_reason(module, fun, arity) do
-    with {^module, binary, _path} <- :code.get_object_code(module),
-         {:ok, {^module, [{'ExDp', chunk}]}} <- :beam_lib.chunks(binary, ['ExDp']),
-         {:elixir_deprecated_v1, deprecated} <- :erlang.binary_to_term(chunk),
-         {_key, reason} <- List.keyfind(deprecated, {fun, arity}, 0) do
-      reason
+    if function_exported?(module, :__info__, 1) do
+      case List.keyfind(module.__info__(:deprecated), {fun, arity}, 0) do
+        {_key, reason} -> reason
+        nil -> nil
+      end
     else
-      _ -> nil
+      nil
     end
   end