RFR: 8263825: Remove unused and commented out member from NTLMException

[Claes Redestad]

On Thu, 18 Mar 2021 16:58:31 GMT, Alex Blewitt <github.com+76791+alblue at openjdk.org> wrote:

>> Removed commented out value from `NTLMException`
>
> See commentary on #2993

Filed [JDK-8263825](https://bugs.openjdk.java.net/browse/JDK-8263825) for this.

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PR: https://git.openjdk.java.net/jdk/pull/3076