remove unnecessary log

format.php

@@ -204,15 +204,13 @@ private function bottom_value($identifier, $data, $default = '')
     public function export_file_extension()
     {
         return '.xlsx';
-
     }//end export_file_extension()
 
 
     public function writequestion($question)
     {
         $this->lessonquestions[] = $question;
         return true;
-
     }//end writequestion()
 
 
@@ -222,8 +220,6 @@ public function presave_process($content)
             throw new moodle_exception('noquestions', 'qformat_xlsxtable');
         }
 
-        debugging('Questions: '.print_r($this->lessonquestions, true), DEBUG_DEVELOPER);
-
         $workbook  = new MoodleExcelWorkbook($this->filename);
         $worksheet = $workbook->add_worksheet('Questions');
         foreach ($this->lessonquestions as $rowIndex => $question) {