[lworld] RFR: 8293500: [lworld] runtime/NMT/MallocLimitTest.java#invalid-settings crashes after merge

[David Simms]

Removed unused mtValueTypes

Trivial revert to "master" revision

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Commit messages:
 - 8293500: [lworld] runtime/NMT/MallocLimitTest.java#invalid-settings crashes after merge

Changes: https://git.openjdk.org/valhalla/pull/746/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=746&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293500
  Stats: 2 lines in 2 files changed: 0 ins; 2 del; 0 mod
  Patch: https://git.openjdk.org/valhalla/pull/746.diff
  Fetch: git fetch https://git.openjdk.org/valhalla pull/746/head:pull/746

PR: https://git.openjdk.org/valhalla/pull/746