No functional change - refactor QueryIterator to use Iterator.remove()

default method

Iterator.remove() has a default implementation that throws UnsupportedOperationException which is what we want. Remove the close() method from QueryIterator and implementations so that we just use the Iterator.remove() default implementation.

ebean-api/src/main/java/io/ebean/QueryIterator.java

@@ -70,12 +70,6 @@ public interface QueryIterator<T> extends Iterator<T>, AutoCloseable {
   @Override
   T next();
 
-  /**
-   * Remove is not allowed.
-   */
-  @Override
-  void remove();
-
   /**
    * Close the underlying resources held by this iterator.
    */