[AUDIT] Evaluate if SPARK-46957's shuffle cleanup fix is needed in the plugin

[mythrocks]

This concerns the shuffle cleanup fix introduced in SPARK-46957. Per description:

This is a long-standing bug in decommission where the migrated shuffle files can't be cleaned up from the executor. Normally, the shuffle files are tracked by taskIdMapsForShuffle during the map task execution. Upon receiving the RemoveShuffle(shuffleId) request from driver, executor can clean up those shuffle files by searching taskIdMapsForShuffle. However, for the migrated shuffle files by decommission, they lose the track in the destination executor's taskIdMapsForShuffle and can't be deleted as a result.

This might need evaluation by someone familiar with Spark Shuffle. It appears to be a missed condition where shuffle files might not be cleaned up.

[abellina]

I'll take a look @mythrocks