[jdk22u] RFR: 8328776: [AIX] remove checked_vmgetinfo, use vmgetinfo directly

[Matthias Baesken]

8328776: [AIX] remove checked_vmgetinfo, use vmgetinfo directly

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Commit messages:
 - Backport cf9b5a71bd66a51147d0dbf9ecf4038101a1e191

Changes: https://git.openjdk.org/jdk22u/pull/124/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk22u&pr=124&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328776
  Stats: 17 lines in 1 file changed: 1 ins; 14 del; 2 mod
  Patch: https://git.openjdk.org/jdk22u/pull/124.diff
  Fetch: git fetch https://git.openjdk.org/jdk22u.git pull/124/head:pull/124

PR: https://git.openjdk.org/jdk22u/pull/124