Eloqua BULK APIs to delete Campaign , Program , Email and ContactSegment

We have a scenario where we need to remove large number of assets from Eloqua. We tried to remove campaign using following /REST/ url link

/api/REST/2.0/assets/campaign/{id}

Using REST urls able to delete campaigns, but its taking more time to delete.

I gone through the Eloqua API documentation but I don't any BULK API's for deleting campaign or programs.

/api/bulk/2.0/

Can we delete assets(campaign and program) using Eloqua BULK API's ?

Thanks.