[lworld] RFR: 8376042: [lworld] Revert changes to --patch-module handling

Thu Jan 22 22:50:10 UTC 2026

Migrated value classes were previously handled with `--patch-module` and lworld-specific changes were added to better handle the new use case. Now that jimage is used instead, we can remove these special checks and refactors to better align lworld with mainline. Verified with tier1-5 tests.

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Commit messages:
 - Reverted tests
 - Reverted CDS changes
 - [lworld] Revert changes to --patch-module handling

Changes: https://git.openjdk.org/valhalla/pull/1950/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1950&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8376042
  Stats: 118 lines in 7 files changed: 10 ins; 90 del; 18 mod
  Patch: https://git.openjdk.org/valhalla/pull/1950.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1950/head:pull/1950

PR: https://git.openjdk.org/valhalla/pull/1950