Revert r37358
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37359 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Revert r37358
encode("UTF-16XX") instead of UTF-16XX encoded byte string by
hand.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37359 b2dd03c8-39d4-4d8f-98ff-823fe69b080e