[lworld] RFR: 8292953: [lworld] Remove ValueCapableClass

[David Simms]

Removed references to "jdk.incubator.mvt"

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Commit messages:
 - 8292953: [lworld] Remove ValueCapableClass

Changes: https://git.openjdk.org/valhalla/pull/729/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=729&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8292953
  Stats: 249 lines in 4 files changed: 0 ins; 248 del; 1 mod
  Patch: https://git.openjdk.org/valhalla/pull/729.diff
  Fetch: git fetch https://git.openjdk.org/valhalla pull/729/head:pull/729

PR: https://git.openjdk.org/valhalla/pull/729