diff --git a/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php b/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php
index 6490d0bae..6152c4176 100644
--- a/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php
+++ b/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php
@@ -802,8 +802,6 @@ class BasicEntityPersister implements EntityPersister
                 );
             }
 
-            // unset the old value and set the new sql aliased value here. By definition
-            // unset($identifier[$targetKeyColumn] works here with how UnitOfWork::createEntity() calls this method.
             $computedIdentifier[$targetClass->getFieldForColumn($targetKeyColumn)] =
                 $sourceClass->reflFields[$sourceClass->fieldNames[$sourceKeyColumn]]->getValue($sourceEntity);
         }