Fixed: apache/flink#40815 (master - 8543334)

[Flink CI]

apache / flink master Build #40815 fixed 6 hrs, 12 mins, 42 secs sunhaibotb 8543334 CHANGESET → [hotfix][test] Clean up the test code in SourceStreamTaskTest and OneInputStreamTaskTest These cleanups include removing unnecessary type parameter declarations and redundant suppression, etc.