diff --git a/DataStorage/Database/Mapper/DataMapperFactory.php b/DataStorage/Database/Mapper/DataMapperFactory.php
index 43fd780fd..6452df2f4 100755
--- a/DataStorage/Database/Mapper/DataMapperFactory.php
+++ b/DataStorage/Database/Mapper/DataMapperFactory.php
@@ -130,14 +130,6 @@ class DataMapperFactory
      */
     protected static ConnectionAbstract $db;
 
-    /**
-     * Initialized objects for cross reference to reduce initialization costs
-     *
-     * @var array[]
-     * @since 1.0.0
-     */
-    protected static array $initObjects = [];
-
     /**
      * Constructor.
      *