You can use the Tenant Manager to delete an S3 bucket that is empty.
These instructions describe how to delete an S3 bucket using the Tenant Manager. You can also delete S3 buckets using the Tenant Management API or the S3 REST API.
You cannot delete an S3 bucket if it contains objects or noncurrent object versions. For information about how S3 versioned objects are deleted, see the instructions for administering StorageGRID.