[ticket/12938] Remove the 'Download all attachments' feature.

PHPBB3-12938

phpBB/includes/functions_download.php

@@ -717,27 +717,6 @@ function phpbb_download_check_pm_auth($db, $user_id, $msg_id)
 	return $allowed;
 }
 
-/**
-* Cleans a filename of any characters that could potentially cause a problem on
-* a user's filesystem.
-*
-* @param string $filename The filename to clean
-*
-* @return string The cleaned filename
-*/
-function phpbb_download_clean_filename($filename)
-{
-	$bad_chars = array("'", "\\", ' ', '/', ':', '*', '?', '"', '<', '>', '|');
-
-	// rawurlencode to convert any potentially 'bad' characters that we missed
-	$filename = rawurlencode(str_replace($bad_chars, '_', $filename));
-
-	// Turn the %xx entities created by rawurlencode to _
-	$filename = preg_replace("/%(\w{2})/", '_', $filename);
-
-	return $filename;
-}
-
 /**
 * Check if the browser is internet explorer version 7+
 *