Revert "[FLINK-36585][connector/common] SplitFetcherManager.close() should not chain runnables to the element queue future in a tight loop.

[snuyanzin]

This a revert for commit fdf9b29
since after that commit there is no any successful master build

links to all failure CIs could be found at FLINK-37373

Brief change log

just revert

Verifying this change

existing ci

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

• Dependencies (does it add or upgrade a dependency): ( no)
• The public API, i.e., is any changed class annotated with @Public(Evolving): ( no)
• The serializers: ( no)
• The runtime per-record code paths (performance sensitive): ( no)
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: ( no)
• The S3 file system connector: ( no)

Documentation

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

[flinkbot]

CI report:

• 52212e5 Azure: SUCCESS

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