Revert "Added test for ACT-815 (not a bug)" -> test not useful

This reverts commit 6db0b491.

modules/activiti-engine/src/test/java/org/activiti/standalone/history/FullHistoryTest.java

@@ -209,28 +209,6 @@ public class FullHistoryTest extends ResourceActivitiTestCase {
     assertEquals(123456789L, historicVariable.getValue());
   }
   
-  /**
-   * Test for ACT-815
-   */
-  @Deployment(resources={"org/activiti/engine/test/history/oneTaskProcess.bpmn20.xml"})
-  public void testHistoricDetailsActivityInstanceId() throws Exception {
-    ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("oneTaskProcess");
-    runtimeService.setVariable(processInstance.getId(), "variableSetinProcess", "Hello world");
-    
-    Task task = taskService.createTaskQuery().processInstanceId(processInstance.getId()).singleResult();
-    taskService.complete(task.getId(), Collections.singletonMap("variableSetInTask", (Object)"Activiti rocks"));
-    
-    // Check historic details
-    List<HistoricDetail> details = historyService.createHistoricDetailQuery()
-              .processInstanceId(processInstance.getId())
-              .list();
-    assertEquals(2, details.size());
-    
-    // Activity-ID should be set for both details
-    assertNotNull(details.get(0).getActivityInstanceId());
-    assertNotNull(details.get(1).getActivityInstanceId());
-  }
-  
   @Deployment(resources={"org/activiti/engine/test/history/oneTaskProcess.bpmn20.xml"})
   public void testHistoricVariableInstanceQueryTaskVariables() {
     Map<String, Object> variables = new HashMap<String, Object>();
@@ -1380,4 +1358,3 @@ public class FullHistoryTest extends ResourceActivitiTestCase {
     
    }
 }
-