[lworld] RFR: 8324052: [lworld] remove experimental code from lworld

[Vicente Romero]

removing previous developments from lworld

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Commit messages:
 - 8324052: [lworld] remove experimental code from lworld

Changes: https://git.openjdk.org/valhalla/pull/976/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=976&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8324052
  Stats: 3755 lines in 232 files changed: 855 ins; 2403 del; 497 mod
  Patch: https://git.openjdk.org/valhalla/pull/976.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/976/head:pull/976

PR: https://git.openjdk.org/valhalla/pull/976