RFR: 8268595: java/io/Serializable/serialFilter/GlobalFilterTest.java#id1 failed in timeout

[Jaikiran Pai]

The `GlobalFilterTest` has to 2 `@test` tags. One of them has failed with a timeout as noted in https://bugs.openjdk.java.net/browse/JDK-8268595. The timeout seems to have happened even after the tests had already completed successfully. Like I note in the JBS comments of that issue, I suspect it might have to do with the "-XX:StartFlightRecording:name=DeserializationEvent,dumponexit=true" usage in this test action.

The commit in this PR removes that second `@test` altogether because (correct me if I'm wrong) from what I understand, this test never enables the DeserializationEvent which means there is no JFR events being captured for deserialization in this test, nor does the test do any JFR events related testing. So, I think this second `@test` is virtually a no-op when it comes to the JFR testing. There's a separate `TestDeserializationEvent` which has a comprehensive testing of the DeserializationEvent.

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Commit messages:
 - 8268595: java/io/Serializable/serialFilter/GlobalFilterTest.java#id1 failed in timeout

Changes: https://git.openjdk.java.net/jdk/pull/6008/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6008&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8268595
  Stats: 12 lines in 1 file changed: 0 ins; 12 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6008.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6008/head:pull/6008

PR: https://git.openjdk.java.net/jdk/pull/6008