[WIP][HUDI-8368] Remove unused logic of rollback log block creation in BaseRollbackHelper

[ktblsva]

Change Logs

Remove unused logic

Impact

Clean code

Risk level (write none, low medium or high below)

NA

Documentation Update

None

Contributor's checklist

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

[ktblsva]

@yihua hello! i have some questions. we still have some code for table version < 8 , where we set value to logBlocksToBeDeleted, e.g. MarkerBaserRollbackStrategy#createRollbackRequestForAppend. do we need to clean it too?

[yihua]

@yihua hello! i have some questions. we still have some code for table version < 8 , where we set value to logBlocksToBeDeleted, e.g. MarkerBaserRollbackStrategy#createRollbackRequestForAppend. do we need to clean it too?

We still need the rollback logic for log appends in the backwards compatible writer in Hudi 1.0, i.e., when using Hudi 1.0 to write with table version 6 which appends rollback log block for log files.