[jdk21u-dev] RFR: 8337723: Remove redundant tests from com/sun/security/sasl/gsskerb

[Goetz Lindenmaier]

I backport this for parity with 21.0.10-oracle.

Resolved ProblemList and TEST.groups due to context.
Probably clean.

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Commit messages:
 - backport f979f727b6137be9a3f85baed4fbfdd785970044

Changes: https://git.openjdk.org/jdk21u-dev/pull/2185/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2185&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8337723
  Stats: 892 lines in 12 files changed: 58 ins; 817 del; 17 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2185.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2185/head:pull/2185

PR: https://git.openjdk.org/jdk21u-dev/pull/2185