[jira] [Created] (FLINK-12056) Remove legacy methods in LeaderRetrievalUtils

[Shang Yuanchun (Jira)]

TisonKun created FLINK-12056:
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             Summary: Remove legacy methods in LeaderRetrievalUtils
                 Key: FLINK-12056
                 URL: https://issues.apache.org/jira/browse/FLINK-12056
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Coordination
    Affects Versions: 1.9.0
            Reporter: TisonKun
            Assignee: TisonKun
             Fix For: 1.9.0


Also some refactor.



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