RFR: 8310075: Revert accidental change to jcheck configuration for shenandoah project [v2]

[William Kemper]

> This bit of the configuration was clobbered with https://github.com/openjdk/shenandoah/pull/285.

William Kemper has updated the pull request incrementally with one additional commit since the last revision:

  Change reviewers to allow committers

-------------

Changes:
  - all: https://git.openjdk.org/shenandoah/pull/288/files
  - new: https://git.openjdk.org/shenandoah/pull/288/files/2e9756b1..d497b1bb

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah&pr=288&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah&pr=288&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/shenandoah/pull/288.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah.git pull/288/head:pull/288

PR: https://git.openjdk.org/shenandoah/pull/288