RFR: 8357821: Revert incorrectly named JavaLangAccess::unchecked* methods

Fri May 30 12:02:37 UTC 2025

Reverts certain [JDK-8353197](https://bugs.openjdk.org/browse/JDK-8353197) (which implements JavaDoc improvement and precautionary naming for certain unsafe methods in `jdk.internal.access.JavaLangAccess`) changes that are found to be incorrect. See the JBS issue for details on the followed evaluation process.

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Commit messages:
 - Revert incorrect JLA renamings

Changes: https://git.openjdk.org/jdk/pull/25545/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25545&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8357821
  Stats: 25 lines in 12 files changed: 0 ins; 6 del; 19 mod
  Patch: https://git.openjdk.org/jdk/pull/25545.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25545/head:pull/25545

PR: https://git.openjdk.org/jdk/pull/25545