Revert r46828

r46828 "md5ossl.c: indicate the result" caused segfaults.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46829 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-07-16

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46830 b2dd03c8-39d4-4d8f-98ff-823fe69b080e