removed unnecessary variable assignment

Serializer/GenericSerializationVisitor.php

@@ -141,7 +141,6 @@ abstract class GenericSerializationVisitor extends AbstractVisitor
 
     public function visitUsingCustomHandler($data, $type, &$visited)
     {
-        $visited = false;
         foreach ($this->customHandlers as $handler) {
             $rs = $handler->serialize($this, $data, $type, $visited);
             if ($visited) {
@@ -165,4 +164,4 @@ abstract class GenericSerializationVisitor extends AbstractVisitor
     {
         $this->root = $data;
     }
-}
+}

Serializer/XmlSerializationVisitor.php

@@ -136,7 +136,6 @@ class XmlSerializationVisitor extends AbstractVisitor
 
     public function visitUsingCustomHandler($data, $type, &$visited)
     {
-        $visited = false;
         foreach ($this->customHandlers as $handler) {
             $rs = $handler->serialize($this, $data, $type, $visited);
             if ($visited) {
@@ -268,4 +267,4 @@ class XmlSerializationVisitor extends AbstractVisitor
 
         return $this->document->createTextNode((string) $data);
     }
-}
+}