RFR: 8273670: Remove weak etypes from default krb5 etype list [v5]

[Valerie Peng]

On Fri, 1 Oct 2021 17:09:03 GMT, Weijun Wang <weijun at openjdk.org> wrote:

>> This code change removes weak etypes from the default list so it's safer to enable one of them. See the corresponding CSR at https://bugs.openjdk.java.net/browse/JDK-8274207 for more explanation. BTW, please review the CSR as well.
>
> Weijun Wang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   backout checksum changes
>   
>   reverted:

Marked as reviewed by valeriep (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/5654