code: public void deleteCertificate(String thumbprintAlgorithm, String thumbprint, Iterable<BatchClientBehavior> additionalBehaviors) throws BatchErrorException, IOException {
          CertificateDeleteOptions options = new CertificateDeleteOptions();
          BehaviorManager bhMgr = new BehaviorManager(this.customBehaviors(), additionalBehaviors);
          bhMgr.applyRequestBehaviors(options);
  
          this.parentBatchClient.protocolLayer().certificates().delete(thumbprintAlgorithm, thumbprint, options);
      }
docs: Deletes the certificate from the Batch account.
  <p>The delete operation requests that the certificate be deleted. The request puts the certificate in the {@link com.microsoft.azure.batch.protocol.models.CertificateState#DELETING Deleting} state.
  The Batch service will perform the actual certificate deletion without any further client action.</p>
  <p>You cannot delete a certificate if a resource (pool or compute node) is using it. Before you can delete a certificate, you must therefore make sure that:</p>
  <ul>
  <li>The certificate is not associated with any pools.</li>
  <li>The certificate is not installed on any compute nodes. (Even if you remove a certificate from a pool, it is not removed from existing compute nodes in that pool until they restart.)</li>
  </ul>
  <p>If you try to delete a certificate that is in use, the deletion fails. The certificate state changes to {@link com.microsoft.azure.batch.protocol.models.CertificateState#DELETE_FAILED Delete Failed}.
  
  You can use {@link #cancelDeleteCertificate(String, String)} to set the status back to Active if you decide that you want to continue using the certificate.</p>
  @param thumbprintAlgorithm The algorithm used to derive the thumbprint parameter. This must be sha1.
  @param thumbprint The thumbprint of the certificate to delete.
  @param additionalBehaviors A collection of {@link BatchClientBehavior} instances that are applied to the Batch service request.
  @throws BatchErrorException Exception thrown when an error response is received from the Batch service.
  @throws IOException Exception thrown when there is an error in serialization/deserialization of data sent to/received from the Batch service.