Revert "Add minitest gem to fix test runtime error with ruby 2.0"
Revert "Add minitest gem to fix test runtime error with ruby 2.0"

This reverts commit 08584e571e9d5f8e40f2b73d1bc99b60878eb314.

meltheadorable/workflow,TwilightCoders/workflow,anujgangwar/workflow,imlitech/workflow,elsurudo/workflow,geekq/workflow,cosmindorobantu/workflow,lorefnon/workflow-orchestrator