How to update the certificate in cloudhsm keystore using AWS cloudhsm functionality?

I am referring to below AWS doc - https://docs.aws.amazon.com/cloudhsm/latest/userguide/alternative-keystore_5.html

I have a scenario where I need to update certificate entry in the AWS cloudhsm keystore. But as in my case, the certificate already exists in the keystore, which in turn, throws keystore exception. So, I thought of deleting the certificate from keystore and then adding new certificate using setCertificateEntry API, but as per documentation, there is no functionality to delete certificate. As a result, I am not able to modify certificate for a given alias.

Is there any particular reason, why the deletion of certificate is not supported? Secondly, how could I achieve my scenario where I want to update certificate in the keystore for a given alias?