From a3fb80904dcbbf2aaec0df202e343b10f0518d1c Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sat, 25 Aug 2018 09:08:49 +0900
Subject: Remove unused `Hash#__update` method.

---
 mrblib/hash.rb | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/mrblib/hash.rb b/mrblib/hash.rb
index 7e1db905f..96029a230 100644
--- a/mrblib/hash.rb
+++ b/mrblib/hash.rb
@@ -341,11 +341,6 @@ class Hash
     }
     self.replace(h)
   end
-
-  def __update(h)
-    h.each_key{|k| self[k] = h[k]}
-    self
-  end
 end
 
 ##
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