remove debug echo

view.php

@@ -55,10 +55,8 @@
     if ($action==1 && has_capability('mod/gradeimporter:edit', $context)){
       //download feedback file
       $fs = get_file_storage();
-      echo 'file storage';
       $file = $fs->get_file($context->id, 'mod_gradeimporter', 'gradeimporter_feedback', $fileid, '/', $filename);
       if ($file){
-        echo 'found file';
         send_stored_file($file, 86400, 0, true);
       }
     } else if ($action == 2 && has_capability('mod/gradeimporter:edit', $context)){