Revert "Fixed the DTD warning for Hibernate"

This reverts commit 1ff350ee97.

src/main/resources/hibernate.cfg.xml

@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='utf-8'?>
 <!DOCTYPE hibernate-configuration PUBLIC
     "-//Hibernate/Hibernate Configuration DTD//EN"
-    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
+    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
 <hibernate-configuration>
   <!-- a SessionFactory instance listed as /jndi/name -->
   <session-factory>
@@ -44,4 +44,4 @@
     <class-cache class="org.hibernate.auction.Bid" usage="read-only"/>
     <collection-cache collection="org.hibernate.auction.Item.bids" usage="read-write"/>-->
   </session-factory>
-</hibernate-configuration>
+</hibernate-configuration>

src/test/resources/hibernate.cfg.xml

@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='utf-8'?>
 <!DOCTYPE hibernate-configuration PUBLIC
     "-//Hibernate/Hibernate Configuration DTD//EN"
-    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
+    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
 <hibernate-configuration>
   <!-- a SessionFactory instance listed as /jndi/name -->
   <session-factory>
@@ -41,4 +41,4 @@
     <class-cache class="org.hibernate.auction.Bid" usage="read-only"/>
     <collection-cache collection="org.hibernate.auction.Item.bids" usage="read-write"/>-->
   </session-factory>
-</hibernate-configuration>
+</hibernate-configuration>