Don't test on ruby 1.9.3
Don't test on ruby 1.9.3

Because Sidekiq does not already support MRI 1.9

farainc/sidekiq-cron,nikolai-b/sidekiq-cron,nikolai-b/sidekiq-cron,ondrejbartas/sidekiq-cron,nhoffmann/sidekiq-cron,Eunix/sidekiq-cron,nhoffmann/sidekiq-cron,davidtrogers/sidekiq-cron,Eunix/sidekiq-cron,davidtrogers/sidekiq-cron,ondrejbartas/sidekiq-cron,farainc/sidekiq-cron