removed ListOpenTasks

Author: antmendoza

core/src/main/java/io/temporal/samples/taskinteraction/README.md

@@ -7,8 +7,7 @@ The basic implementation consist on three parts:
 - Block the workflow execution `Workflow.await` awaiting a Signal.
 - The workflow will eventually receive a signal that unblocks it.
 
-Additionally, the example allows to track task state (PENDING, STARTED, COMPLETED...) and 
-list open task.
+Additionally, the example allows to track task state (PENDING, STARTED, COMPLETED...).
 
 > If the client can not send a Signal to the workflow execution, steps 2 and 3 can be replaced by an activity
 that polls using one of [these three strategies](../polling).
@@ -27,18 +26,13 @@ that polls using one of [these three strategies](../polling).
 ./gradlew -q execute -PmainClass=io.temporal.samples.taskinteraction.client.StartWorkflow
 ```
 
-- List task
-
-This process will query the workflow execution every 10 seconds, and print open tasks (state != COMPLETED).
-```bash
-./gradlew -q execute -PmainClass=io.temporal.samples.taskinteraction.client.ListOpenTasks
-
-
-
-```
 - Update task
 
 Update one of the open task to the next state (PENDING -> STARTED -> COMPLETED)
 ```bash
-./gradlew -q execute -PmainClass=io.temporal.samples.taskinteraction.client.ListOpenTasks
+./gradlew -q execute -PmainClass=io.temporal.samples.taskinteraction.client.UpdateTask
 ```
+
+The workflow has three task, each task has three different states and is created in PENDING state. 
+You will have to run this class six times to move each task from PENDING to STARTED and to COMPLETED. 
+Once the last task is completed the workflow completes.

core/src/main/java/io/temporal/samples/taskinteraction/TaskService.java

@@ -86,10 +86,6 @@ public R executeTask(Callback<R> callback, String token) {
     return promise.get();
   }
 
-  public List<Task> getOpenTasks() {
-    return listener.getOpenTasks();
-  }
-
   public interface Callback<T> {
     T execute();
   }