[lworld] RFR: 8336328: [lworld] Remove obsolete runtime tests

[Frederic Parain]

Removing obsolete tests.

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Commit messages:
 - Remove obsolete tests

Changes: https://git.openjdk.org/valhalla/pull/1167/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1167&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8336328
  Stats: 4100 lines in 30 files changed: 0 ins; 4100 del; 0 mod
  Patch: https://git.openjdk.org/valhalla/pull/1167.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1167/head:pull/1167

PR: https://git.openjdk.org/valhalla/pull/1167