diff --git a/core/model/DataObject.php b/core/model/DataObject.php
index 70c118575..b8b4edb28 100644
--- a/core/model/DataObject.php
+++ b/core/model/DataObject.php
@@ -2489,20 +2489,6 @@ class DataObject extends ViewableData implements DataObjectInterface {
 		return $filters;
 	}
 
-	/**
-	 * Replace named fields in a relationship with actual path to data objects.
-	 *
-	 * @param string $path
-	 * @return SearchFilter
-	 */
-	protected function mapRelationshipObjects($path) {
-		$path = explode('.', $path);
-		$fieldName = array_pop($path);
-		foreach($path as $relation) {
-			//
-		}
-	}
-
 	/**
 	 * @return boolean True if the object is in the database
 	 */