removing as it never made any sense. ref symfony#15

Author: dbu

Document/RouteRepository.php

@@ -32,6 +32,9 @@ public function setPrefix($prefix)
         $this->idPrefix = $prefix;
     }
 
+    /**
+     * {@inheritDoc}
+     */
     public function findByUrl($url)
     {
         try {
@@ -44,13 +47,4 @@ public function findByUrl($url)
             return null;
        }
     }
-
-    /**
-     * Overwritten to set the prefix to allow the document to calculate its url
-     */
-    public function createDocument($node, array &$hints = array()) {
-        $doc = parent::createDocument($node, $hints);
-        $doc->setPrefix($this->idPrefix);
-        return $doc;
-    }
 }