Remove debug

CRM/CiviExportExcel/Utils/Report.php

@@ -278,7 +278,6 @@ class CRM_CiviExportExcel_Utils_Report extends CRM_Core_Page {
       }
 
       $w = self::getRecommendedColumnWidth($val, $headers[$key], $widths);
-error_log('export: ' . $val . '=' . $w);
 
       // Ignore width that would be too small to be practical.
       if ($w < 5) {