merged branch Tobion/patch-5 (PR symfony#6061)

This PR was merged into the master branch.

Commits
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1b41ed0 removed unused variable

Discussion
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removed unused variable

src/Symfony/Component/Routing/RouteCollection.php

@@ -275,7 +275,7 @@ public function getPrefix()
      */
     public function setHostnamePattern($pattern)
     {
-        foreach ($this->routes as $name => $route) {
+        foreach ($this->routes as $route) {
             $route->setHostnamePattern($pattern);
         }
     }