Remove duplicated declaration of the AutoCloseable in JpaEntityManager and JpaEntityManagerFactory classes (#2138)

`EntityManager` and `EntityManagerFactory` already extends `AutoCloseable`.

Signed-off-by: Yanming Zhou <zhouyanming@gmail.com>

Author: quaff

jpa/org.eclipse.persistence.jpa/src/main/java/org/eclipse/persistence/jpa/JpaEntityManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2025 Oracle and/or its affiliates. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
@@ -36,7 +36,7 @@
  * @author Gordon Yorke
  */
 
-public interface JpaEntityManager extends jakarta.persistence.EntityManager, AutoCloseable {
+public interface JpaEntityManager extends jakarta.persistence.EntityManager {
 
     /**
      * This method returns the current session to the requester.  The current session

jpa/org.eclipse.persistence.jpa/src/main/java/org/eclipse/persistence/jpa/JpaEntityManagerFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2011, 2024 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2011, 2025 Oracle and/or its affiliates. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
@@ -31,7 +31,7 @@
  * </p>
  * @see jakarta.persistence.EntityManagerFactory
  */
-public interface JpaEntityManagerFactory extends EntityManagerFactory, AutoCloseable {
+public interface JpaEntityManagerFactory extends EntityManagerFactory {
 
     /**
      * Returns the DatabaseSession that the Factory will be using and