[MINOR] remove useless code.

[jackwener]

Change Logs

remove useless code.

Impact

N/A

When I read the source code of HUDI, fix some simple problems.

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

none

Documentation Update

Describe any necessary documentation update if there is any new feature, config, or user-facing change

• The config description must be updated if new configs are added or the default value of the configs are changed
• Any new feature or user-facing change requires updating the Hudi website. Please create a Jira ticket, attach the
  ticket number here and follow the instruction to make
  changes to the website.

Contributor's checklist

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

[danny0405]

Thanks for the contribution, can we check the test failure?

[jackwener]

has resolve the Problem.
It's caused by that I remove boolean hasNext = hasNext();

I think code may exist problem.
Look like we didn't handle the condition that hasNext() return false.

    // TODO: when hasNext is false, we should not call next()
    boolean hasNext = hasNext();

I just read source code recently and I don't know about HUDI well. So, I don't ensure whether it exist problem.
So I don't add this TODO into this PR.

[hudi-bot]

CI report:

• b6f40cc Azure: FAILURE

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