Allow changing of remote users without reentering the password.

interface/web/admin/form/remote_user.tform.php

@@ -128,9 +128,6 @@ $form["tabs"]['remote_user'] = array (
 			'datatype'	=> 'VARCHAR',
 			'formtype'	=> 'PASSWORD',
 			'encryption' => 'MD5',
-			'validators'    => array ( 0 => array (    'type' => 'NOTEMPTY',
-                'errmsg'=> 'password_error_empty'),
-                                                                        ),
 			'default'	=> '',
 			'value'		=> '',
 			'width'		=> '30',