secret.ttl.ms configuration doesn't do anything / is unused

[james-johnston-thumbtack]

The AWS secret provider has a configuration option of secret.ttl.ms. However, I don't think it actually does anything.

• The config string is referenced only once in any meaningful way: https://github.com/search?q=repo%3Aconfluentinc%2Fcsid-secrets-providers%20%22secret.ttl.ms%22&type=code
• And that is for the MIN_TTL_MS_CONFIG constant:

  csid-secrets-providers/aws/src/main/java/io/confluent/csid/config/provider/aws/SecretsManagerConfigProviderConfig.java

  Line 139 in d4a911d

  public static final String MIN_TTL_MS_CONFIG = "secret.ttl.ms";

• Which is only referenced to assign it to minimumSecretTTL: https://github.com/search?q=repo%3Aconfluentinc%2Fcsid-secrets-providers%20MIN_TTL_MS_CONFIG&type=code
• Which appears to be a dead variable: https://github.com/search?q=repo%3Aconfluentinc%2Fcsid-secrets-providers%20minimumSecretTTL&type=code

Seems to me that this secret.ttl.ms configuration should be deprecated/removed...