[FLINK-31402][yarn] Remove usage of deprecated ConverterUtils method.

[slfan1989]

What is the purpose of the change

JIRA: FLINK-31402. Remove ConverterUtils Deprecated Method.

Many methods in ConverterUtils have been Deprecated, we can replace the Deprecated methods and remove this class(ConverterUtils).

Brief change log

1. replace the Deprecated methods
2. remove this class(ConverterUtils)

Verifying this change

Manually verified.

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? no.

[flinkbot]

CI report:

• 52bf508 Azure: SUCCESS

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[wanglijie95]

Thanks for creating this PR @slfan1989. LGTM.