fixed trailing whitespace

mod/quiz/report/statistics/db/access.php

@@ -16,5 +16,3 @@ $quizreport_statistics_capabilities = array(
         'clonepermissionsfrom' =>  'mod/quiz:viewreports'
     )
 );
-?>
-

mod/quiz/report/statistics/db/upgrade.php

@@ -142,4 +142,3 @@ function xmldb_quizreport_statistics_upgrade($oldversion) {
     return $result;
 }
 
-?>

mod/quiz/report/statistics/version.php

 <?php
 $plugin->version  = 2008112100;   // The (date) version of this module
-
-?>
\ No newline at end of file