[HUDI-4883] Supporting delete savepoint for MOR

[nsivabalan]

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Change Logs

Supporting delete savepoint for MOR table

Impact

Users could delete unnecessary savepoints and unblock archival for MOR table.

**Risk level: medium **

Extraneous savepoints could be hanging around and thwarting the archival progress for MOR table. With this patch, we should be able to make progress.

Contributor's checklist

• [ ] Read through contributor's guide
• [ ] Change Logs and Impact were stated clearly
• [ ] Adequate tests were added if applicable
• [ ] CI passed

[hudi-bot]

CI report:

• dd05ac6ceec72a4639e301be790de528d6436242 Azure: SUCCESS

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• @hudi-bot run azure re-run the last Azure build