[hotfix][test] Remove redundant keywords and lines for ForStGeneralMultiGetOperationTest.java

[RocMarshal]

What is the purpose of the change

[hotfix][test] Remove redundant keywords and lines for ForStGeneralMultiGetOperationTest.java

Brief change log

[hotfix][test] Remove redundant keywords and lines for ForStGeneralMultiGetOperationTest.java

Verifying this change

This change is a trivial rework / code cleanup without any test coverage.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): (yes / no)
• The public API, i.e., is any changed class annotated with @Public(Evolving): (yes / no)
• The serializers: (yes / no / don't know)
• The runtime per-record code paths (performance sensitive): (yes / no / don't know)
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (yes / no / don't know)
• The S3 file system connector: (yes / no / don't know)

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)

[flinkbot]

CI report:

• 8ff796a Azure: SUCCESS

Bot commands

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• @flinkbot run azure re-run the last Azure build

[davidradl]

trivial change

[RocMarshal]

hi, @lvyanquan Could you. help take a look ? thx a lot !

[davidradl]

Trivial change - approve