remove not needed php open tag

Author: OskarStark

page_creation.rst

@@ -45,7 +45,6 @@ random) number and prints it. To do that, create a "Controller class" and a
 "controller" method inside of it that will be executed when someone goes to
 ``/lucky/number``::
 
-    <?php
     // src/AppBundle/Controller/LuckyController.php
     namespace AppBundle\Controller;