[FLINK-10607][network][test] Unify to remove duplicated NoOpResultPartitionConsumableNotifier

[zhijiangW]

What is the purpose of the change

There are currently existing two same NoOpResultPartitionConsumableNotifier. We should retain only one and unify all the usages in related tests for avoiding mock.

Brief change log

• Keep only one NoOpResultPartitionConsumableNotifier for tests
• Modify all the related tests to avoid mock ResultPartitionConsumableNotifier

Verifying this change

This change is already covered by existing tests.

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, Yarn/Mesos, 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)

[pnowojski]

LGTM

[pnowojski]

LGTM