module SidekiqScheduler::Client

def remove_scheduler_queue(timestamp)
  key = "delayed:#{timestamp}"
  if 0 == Sidekiq.redis { |r| r.llen(key) }
    Sidekiq.redis { |r| r.del(key) }
    Sidekiq.redis { |r| r.zrem('delayed_queue_schedule', timestamp) }
  end
end