diff --git a/lib/Doctrine/Relation/ForeignKey.php b/lib/Doctrine/Relation/ForeignKey.php
index e21826053..76553f771 100644
--- a/lib/Doctrine/Relation/ForeignKey.php
+++ b/lib/Doctrine/Relation/ForeignKey.php
@@ -33,44 +33,6 @@ Doctrine::autoload('Doctrine_Relation');
  */
 class Doctrine_Relation_ForeignKey extends Doctrine_Relation
 {
-    /**
-     * processDiff
-     *
-     * @param Doctrine_Record $record
-     * @param Doctrine_Connection $conn
-     * @return void
-     */
-    public function processDiff(Doctrine_Record $record, $conn = null)
-    {
-        if (!$conn) {
-       	    $conn = $this->getTable()->getConnection();
-        }
-    	
-        $alias = $this->getAlias();
-
-        if ($this->isOneToOne()) {
-            if ($record->obtainOriginals($alias)
-               && $record->obtainOriginals($alias)->obtainIdentifier() != $this->obtainReference($alias)->obtainIdentifier()
-            ) {
-                    $record->obtainOriginals($alias)->delete($conn);
-            }
-        } else {
-            if ($record->hasReference($alias)) {
-                $new = $record->obtainReference($alias);
-
-                if ( ! $record->obtainOriginals($alias)) {
-                    $record->loadReference($alias);
-                }
-                $operations = Doctrine_Relation::getDeleteOperations($record->obtainOriginals($alias), $new);
-
-                foreach ($operations as $r) {
-                    $r->delete($conn);
-                }
-
-                $record->assignOriginals($alias, clone $record->get($alias));
-            }
-        }
-    }
     /**
      * fetchRelatedFor
      *