[jira] [Created] (FLINK-12154) Remove legacy fields for SingleInputGate

[Shang Yuanchun (Jira)]

zhijiang created FLINK-12154:
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             Summary: Remove legacy fields for SingleInputGate
                 Key: FLINK-12154
                 URL: https://issues.apache.org/jira/browse/FLINK-12154
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Network
            Reporter: zhijiang
            Assignee: zhijiang


In {{SingleInputGate#create}}, we could remove unused parameter {{ExecutionAttemptID}}.

And for the constructor of {{SingleInputGate}}, we could remove unused parameter {{TaskIOMetricGroup}}.

Then we introduce {{createSingleInputGate}} for reusing the process of creating {{SingleInputGate}} in related tests.



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