How can approval delegations be removed upon an employee's termination?

Summary:

We were experiencing failing transactions due to a routing slip error. We found that the error was a result of an approval delegation previously set up for a now retired employee. Found the following CCC article that mentions the same problem, but there was no response from Oracle on it.

https://community.oracle.com/customerconnect/discussion/615833/remove-approval-delegation-when-user-terminated?utm_source=community-search&utm_medium=organic-search&utm_term=approval+delegations+missing+terminated+delegat

Is there an automated process to remove approval delegations when employees terminate? If not, please confirm what is the best practices to ensure these are removed before causing errors.