Intent of Test_DeleteExecutionsWorkflow_NoActivityMocks_NoExecutions

All 1 exact test in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 1 test
- server/ 1 test
  - service/ 1 test
    
    worker/ 1 test
    
    deletenamespace/ 1 test
    
    deleteexecutions/ 1 test
    
    go.temporal.io/server/service/worker/deletenamespace/deleteexecutions/Test_DeleteExecutionsWorkflow_NoActivityMocks_NoExecutions Introduced here