RFR: 1716: Revert SKARA-1655

Wed Dec 7 00:08:51 UTC 2022

In [SKARA-1655](https://bugs.openjdk.org/browse/SKARA-1655), I implemented a commit check named jCheckConfCheck. It was supposed to check if .jcheck/conf is valid in user's commit. But now, we have a better idea([SKARA-1691](https://bugs.openjdk.org/browse/SKARA-1691)) to check and we no longer need this check any more. Also, this check is not using by any repo right now. It doesn't hurt to revert it.

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Commit messages:
 - SKARA-1716

Changes: https://git.openjdk.org/skara/pull/1438/files
 Webrev: https://webrevs.openjdk.org/?repo=skara&pr=1438&range=00
  Issue: https://bugs.openjdk.org/browse/SKARA-1716
  Stats: 365 lines in 9 files changed: 0 ins; 364 del; 1 mod
  Patch: https://git.openjdk.org/skara/pull/1438.diff
  Fetch: git fetch https://git.openjdk.org/skara pull/1438/head:pull/1438

PR: https://git.openjdk.org/skara/pull/1438