RFR: 8250564: Remove terminally deprecated constructor in GSSUtil

[Joe Darcy]

Back in JDK 16, two unintended default constructors were identified and deprecated for removal. The time has come to remove them.

Please also review the corresponding CSRs:

JDK-8258521 Remove terminally deprecated constructor in GSSUtil 
https://bugs.openjdk.java.net/browse/JDK-8258521

 JDK-8258522 Remove terminally deprecated constructor in java.net.URLDecoder 
https://bugs.openjdk.java.net/browse/JDK-8258522

Calling a static method using an instance of a class, as done in the test B6463990.java, is a coding anti-pattern that generates a lint warning; that warning in enabled in the JDK build.

Thanks,

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Commit messages:
 - 8250564: Remove terminally deprecated constructor in GSSUti

Changes: https://git.openjdk.java.net/jdk/pull/1948/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1948&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8250564
  Stats: 7 lines in 3 files changed: 0 ins; 3 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1948.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1948/head:pull/1948

PR: https://git.openjdk.java.net/jdk/pull/1948