bundled_gems: minitest certificate expired

* gems/bundled_gems: certificate of minitest-5.9.0 has expired. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56188 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-09-19 08:21:16 +00:00 · 2016-09-19 08:21:16 +00:00 · c9dd5918f4
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@ -1,5 +1,4 @@
 did_you_mean 1.0.2
-minitest 5.9.0
 net-telnet 0.1.1
 power_assert 0.3.1
 rake 11.2.2