RFR: 8321825: Remove runtime/CompressedOops/CompressedClassPointers.java from the ProblemList

[David Holmes]

Please review this trivial update.

`runtime/CompressedOops/CompressedClassPointers.java` was added to the ProblemList against [JDK-8317610](https://bugs.openjdk.org/browse/JDK-8317610) but that bug was closed as a duplicate of [JDK-8318485](https://bugs.openjdk.org/browse/JDK-8318485) which is now resolved. The ProblemList entry needs to be removed and if the test continues to fail then a new issue filed.

Testing:
 - local testing of test (passed)
 - tiers 1-3 passed

Thanks

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Commit messages:
 - 8321825: Remove runtime/CompressedOops/CompressedClassPointers.java from the ProblemList

Changes: https://git.openjdk.org/jdk/pull/17075/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17075&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8321825
  Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/17075.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17075/head:pull/17075

PR: https://git.openjdk.org/jdk/pull/17075