RFR: 8354565: jtreg failure handler GatherProcessInfoTimeoutHandler has a leftover call to System.loadLibrary

[Jaikiran Pai]

Can I please get a review of this cleanup in the jtreg timeout handler `GatherProcessInfoTimeoutHandler`?

As noted in https://bugs.openjdk.org/browse/JDK-8354565, this is a leftover after the change done in https://bugs.openjdk.java.net/browse/JDK-8268626. The `timeoutHandler` native test library is no longer built in the JDK, nor it is required by this `GatherProcessInfoTimeoutHandler`. 

I've verified that the `GatherProcessInfoTimeoutHandler` continues to function normally on macosx (x64/aarch64), linux(x64/aarch64) and windows (x64), by intentionally timing out a test and verifying that the `GatherProcessInfoTimeoutHandler` continues to gather the relevant diagnostics.

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Commit messages:
 - 8354565: jtreg failure handler GatherProcessInfoTimeoutHandler has a leftover call to System.loadLibrary

Changes: https://git.openjdk.org/jdk/pull/24648/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24648&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354565
  Stats: 12 lines in 1 file changed: 0 ins; 12 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24648.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24648/head:pull/24648

PR: https://git.openjdk.org/jdk/pull/24648