default ExpireDelegationTokenResult expireDelegationToken(byte[] hmac) {
        return expireDelegationToken(hmac, new ExpireDelegationTokenOptions());
    }
Expire a Delegation Token.
<p>
This is a convenience method for {@link #expireDelegationToken(byte[], ExpireDelegationTokenOptions)} with default options.
This will expire the token immediately. See the overload for more details.

@param hmac HMAC of the Delegation token
@return The ExpireDelegationTokenResult.
clients/src/main/java/org/apache/kafka/clients/admin/Admin.java