Intent of TestRequestCancel_RespondWorkflowTaskCompleted_Started

All 2 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 2 tests
- server/ 2 tests
  - service/ 2 tests
    
    history/ 2 tests
    
    TestEngineSuite/ 2 tests
    
    go.temporal.io/server/service/history/TestEngineSuite/TestRequestCancel_RespondWorkflowTaskCompleted_NoHeartBeat Inherited TestRequestCancel_RespondWorkflowTaskCompleted_NoHeartBeat
    
    go.temporal.io/server/service/history/TestEngineSuite/TestRequestCancel_RespondWorkflowTaskCompleted_Started Introduced here