[GitHub] zhijiangW opened a new pull request #7611: [FLINK-11460][test] Remove the useless class AcknowledgeStreamMockEnvironment

[GitBox <gi...@apache.org>]

zhijiangW opened a new pull request #7611: [FLINK-11460][test] Remove the useless class AcknowledgeStreamMockEnvironment
URL: https://github.com/apache/flink/pull/7611
 
 
   ## What is the purpose of the change
   
   *The class `AcknowledgeStreamMockEnvironment` is  not used any more in current code path, so delete it to make code clean.*
   
   ## Brief change log
   
     - *Delete the class `AcknowledgeStreamMockEnvironment` from code path*
   
   ## Verifying this change
   
   *This change is a  code cleanup without any test coverage.*
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (yes / **no**)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**)
     - The serializers: (yes / **no** / don't know)
     - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
     - The S3 file system connector: (yes / **no** / don't know)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes / **no**)
     - If yes, how is the feature documented? (**not applicable** / docs / JavaDocs / not documented)
   

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