Remove cast

Author: garydgregory

src/test/java/org/apache/commons/collections4/map/AbstractIterableMapTest.java

@@ -98,15 +98,15 @@ public BulkTest bulkTestMapIterator() {
      */
     @Override
     public IterableMap<K, V> getMap() {
-        return (IterableMap<K, V>) super.getMap();
+        return super.getMap();
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public IterableMap<K, V> makeFullMap() {
-        return (IterableMap<K, V>) super.makeFullMap();
+        return super.makeFullMap();
     }
 
     /**