Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Chris Adams:
     Remove remaining references to `hm9000_noop` ( Travis created: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/21533509 )
     Merge pull request #179 from cloudfoundry/asap/remove_health_manager ( Travis started: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/21533169 )
  Aram Price:
     Remove old "health_manager_next" code and references ( Travis Unknown )