Remove duplicated "an" from javadocs

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

hibernate-core/src/main/java/org/hibernate/event/spi/PostCommitDeleteEventListener.java

@@ -13,7 +13,7 @@ package org.hibernate.event.spi;
  */
 public interface PostCommitDeleteEventListener extends PostDeleteEventListener {
 	/**
-	 * Called when a commit fails and an an entity was scheduled for deletion
+	 * Called when a commit fails and an entity was scheduled for deletion
 	 * 
 	 * @param event the delete event to be handled
 	 */

hibernate-core/src/main/java/org/hibernate/event/spi/PostCommitInsertEventListener.java

@@ -13,7 +13,7 @@ package org.hibernate.event.spi;
  */
 public interface PostCommitInsertEventListener extends PostInsertEventListener {
 	/**
-	 * Called when a commit fails and an an entity was scheduled for insertion
+	 * Called when a commit fails and an entity was scheduled for insertion
 	 * 
 	 * @param event the insert event to be handled
 	 */

hibernate-core/src/main/java/org/hibernate/event/spi/PostCommitUpdateEventListener.java

@@ -13,7 +13,7 @@ package org.hibernate.event.spi;
  */
 public interface PostCommitUpdateEventListener extends PostUpdateEventListener {
 	/**
-	 * Called when a commit fails and an an entity was scheduled for update
+	 * Called when a commit fails and an entity was scheduled for update
 	 * 
 	 * @param event the update event to be handled
 	 */

hibernate-core/src/main/java/org/hibernate/event/spi/PostLoadEvent.java

@@ -11,7 +11,7 @@ import java.io.Serializable;
 import org.hibernate.persister.entity.EntityPersister;
 
 /**
- * Occurs after an an entity instance is fully loaded.
+ * Occurs after an entity instance is fully loaded.
  *
  * @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>, Gavin King
  */

hibernate-core/src/main/java/org/hibernate/event/spi/PostLoadEventListener.java

@@ -9,7 +9,7 @@ package org.hibernate.event.spi;
 import java.io.Serializable;
 
 /**
- * Occurs after an an entity instance is fully loaded.
+ * Occurs after an entity instance is fully loaded.
  *
  * @author <a href="mailto:kabir.khan@jboss.org">Kabir Khan</a>
  */

hibernate-core/src/main/java/org/hibernate/hql/internal/ast/tree/ResolvableNode.java

@@ -39,7 +39,7 @@ public interface ResolvableNode {
 	void resolveInFunctionCall(boolean generateJoin, boolean implicitJoin) throws SemanticException;
 
 	/**
-	 * Does the work of resolving an an index [].
+	 * Does the work of resolving an index [].
 	 */
 	void resolveIndex(AST parent) throws SemanticException;