Update ProcessInstanceHelper.java to fix runtime bundle executing wrong start event when start process instance by message [issue #4382]

activiti-core/activiti-engine/src/main/java/org/activiti/engine/impl/util/ProcessInstanceHelper.java

@@ -122,13 +122,7 @@ public ProcessInstance createAndStartProcessInstanceByMessage(ProcessDefinition
                     if (messageRef.equals(messageName)) {
                         initialFlowElement = flowElement;
                         break;
-                    } // FIXME: We should not need to reset eventDefinition messageRef to message name
-                    else if (bpmnModel.containsMessageId(messageRef)) {
-                        Message message = bpmnModel.getMessage(messageRef);
-                        messageEventDefinition.setMessageRef(message.getName());
-                        initialFlowElement = flowElement;
-                        break;
-                    }
+                    } 
                 }
             }
         }