SchedulingTaskExecutor provides prefersShortLivedTasks default method

Issue: SPR-17116

spring-tx/src/main/java/org/springframework/jca/work/WorkManagerTaskExecutor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -287,14 +287,6 @@ public class WorkManagerTaskExecutor extends JndiLocatorSupport
 		return future;
 	}
 
-	/**
-	 * This task executor prefers short-lived work units.
-	 */
-	@Override
-	public boolean prefersShortLivedTasks() {
-		return true;
-	}
-
 
 	//-------------------------------------------------------------------------
 	// Implementation of the JCA WorkManager interface