Merge pull request #3719 from Dolibarr/revert-3573-FIX_remove_file_from_mail_remove_file

Revert "FIX no need to remove file into mail form"

htdocs/core/lib/files.lib.php

@@ -1115,7 +1115,7 @@ function dol_add_file_process($upload_dir, $allowoverwrite=0, $donotupdatesessio
  * @param   int		$donotdeletefile        1=Do not delete physically file
  * @return	void
  */
-function dol_remove_file_process($filenb,$donotupdatesession=0,$donotdeletefile=1)
+function dol_remove_file_process($filenb,$donotupdatesession=0,$donotdeletefile=0)
 {
 	global $db,$user,$conf,$langs,$_FILES;