RFR: 8257858: [macOS]: Remove JNF dependency from libosxsecurity/KeystoreImpl.m [v3]

[Phil Race]

On Fri, 29 Jan 2021 22:47:52 GMT, Weijun Wang <weijun at openjdk.org> wrote:

>> This fix covers both
>> 
>> - [[macOS]: Remove JNF dependency from libosxsecurity/KeystoreImpl.m](https://bugs.openjdk.java.net/browse/JDK-8257858)
>> - [[macOS]: Remove JNF dependency from libosxkrb5/SCDynamicStoreConfig.m](https://bugs.openjdk.java.net/browse/JDK-8257860)
>
> Weijun Wang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   phil comment

Marked as reviewed by prr (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/1845