app/models/manageiq/providers/amazon/cloud_manager/refresh_worker.rb
class ManageIQ::Providers::Amazon::CloudManager::RefreshWorker < ManageIQ::Providers::BaseManager::RefreshWorker
def self.combined_managers(ems)
super.reject { |e| e.kind_of?(ManageIQ::Providers::Amazon::StorageManager::S3) }
end
end