Unnecessary cast

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/collections/trunk@1477785 13f79535-47bb-0310-9956-ffa450edef68

src/test/java/org/apache/commons/collections4/queue/UnmodifiableQueueTest.java

@@ -101,6 +101,6 @@ public class UnmodifiableQueueTest<E> extends AbstractQueueTest<E> {
      */
     @Override
     public Queue<E> getCollection() {
-        return (Queue<E>) super.getCollection();
+        return super.getCollection();
     }
 }