RFR: 8373670: [lworld] Relax jcheck checks

[David Simms]

Disable reviewer and issue checks

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Commit messages:
 - Issue title "[lw5]", but not enforced
 - 8373670: [lw5] Relax jcheck checks

Changes: https://git.openjdk.org/valhalla/pull/1798/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1798&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8373670
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/valhalla/pull/1798.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1798/head:pull/1798

PR: https://git.openjdk.org/valhalla/pull/1798