No InterruptedException in TestSplitterAggregator

* InterruptedException is not thrown by the `TestSplitterAggregator.testSearch()`

* Remove bad javadoc

intermediate/splitter-aggregator-reaper/src/test/java/org/springframework/integration/samples/splitteraggregator/TestSplitterAggregator.java

@@ -51,11 +51,9 @@ public class TestSplitterAggregator {
 
 	/**
 	 * Test the happy path.
-	 *
-	 * @throws InterruptedException
 	 */
 	@Test
-	public void testSearch() throws InterruptedException {
+	public void testSearch() {
 		CompositeResult result = searchRequestor.search(TestUtils.getCompositeCriteria());
 		assertEquals(2, result.getResults().size());
 	}