'Delete the quota entries for a given tenant_id.
After deletion, this tenant will use default quota values in conf.
Raise a "not found" error if the quota for the given tenant was
never defined.'

@staticmethod
@db_api.retry_if_session_inactive()
def delete_tenant_quota(context, tenant_id):

    if (quota_obj.Quota.delete_objects(context, project_id=tenant_id) < 1):
        raise n_exc.TenantQuotaNotFound(tenant_id=tenant_id)
