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

[Alex Blewitt]

Removed commented out value from `NTLMException`

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Commit messages:
 - 8263825: Remove unused and commented out member from NTLMException

Changes: https://git.openjdk.java.net/jdk/pull/3076/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3076&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8263825
  Stats: 6 lines in 1 file changed: 0 ins; 6 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3076.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3076/head:pull/3076

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