Remove Nexus OpCanceledBeforeStarted test (#1763)

Author: bergundy

test/nexus_test.go

@@ -602,8 +602,6 @@ func TestAsyncOperationFromWorkflow(t *testing.T) {
 			switch action {
 			case "wait-for-started":
 				fut.GetNexusOperationExecution().Get(ctx, nil)
-			case "sleep":
-				workflow.Sleep(ctx, time.Millisecond)
 			}
 			cancel()
 		})
@@ -761,21 +759,6 @@ func TestAsyncOperationFromWorkflow(t *testing.T) {
 		}
 	})
 
-	t.Run("OpCanceledBeforeStarted", func(t *testing.T) {
-		run, err := tc.client.SignalWithStartWorkflow(ctx, uuid.NewString(), "cancel-op", "sleep", client.StartWorkflowOptions{
-			TaskQueue: tc.taskQueue,
-		}, callerWorkflow, "fail-to-start")
-		require.NoError(t, err)
-		var execErr *temporal.WorkflowExecutionError
-		err = run.Get(ctx, nil)
-		require.ErrorAs(t, err, &execErr)
-		// The Go SDK unwraps workflow errors to check for cancelation even if the workflow was never canceled, losing
-		// the error chain, Nexus operation errors are treated the same as other workflow errors for consistency.
-		var canceledErr *temporal.CanceledError
-		err = execErr.Unwrap()
-		require.ErrorAs(t, err, &canceledErr)
-	})
-
 	t.Run("OpCanceledAfterStarted", func(t *testing.T) {
 		run, err := tc.client.SignalWithStartWorkflow(ctx, uuid.NewString(), "cancel-op", "wait-for-started", client.StartWorkflowOptions{
 			TaskQueue: tc.taskQueue,