* ChangeLog: remove duplicated entry in r39696.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39698 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2013-03-11

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39699 b2dd03c8-39d4-4d8f-98ff-823fe69b080e