* doc/syntax/refinements.rdoc: remove outdated description.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52993 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Wed Dec  9 14:37:51 2015  Shugo Maeda  <shugo@ruby-lang.org>
+
+	* doc/syntax/refinements.rdoc: remove outdated description.
+
 Wed Dec  9 09:58:09 2015  Koichi Sasada  <ko1@atdot.net>
 
 	* ext/**/*.c (*_memsize): same as r52986 for extensions.

doc/syntax/refinements.rdoc

@@ -255,12 +255,6 @@ method lookup.
 
 This behavior may be changed in the future.
 
-== Refinements and module inclusion
-
-Refinements are inherited by module inclusion.  That is, using activates all
-refinements in the ancestors of the specified module.  Refinements in a
-descendant have priority over refinements in an ancestor.
-
 == Further Reading
 
 See http://bugs.ruby-lang.org/projects/ruby-trunk/wiki/RefinementsSpec for the