code: def delete_tenant_quota(context, tenant_id):
          
  
          tenant_quotas = context.session.query(Quota)
          tenant_quotas = tenant_quotas.filter_by(tenant_id=tenant_id)
          tenant_quotas.delete()
docs: Delete the quota entries for a given tenant_id.
  
          Atfer deletion, this tenant will use default quota values in conf.