diff --git a/interface/sql/auth_sql_snippet.sql b/interface/sql/auth_sql_snippet.sql
deleted file mode 100644
index 2a1fb8cc1c4213d1c02ad6125f41f4661184e2eb..0000000000000000000000000000000000000000
--- a/interface/sql/auth_sql_snippet.sql
+++ /dev/null
@@ -1,5 +0,0 @@
-ALTER TABLE `mail_domain` ADD `sys_userid` INT NOT NULL AFTER `domain_id` ,
-ADD `sys_groupid` INT NOT NULL AFTER `sys_userid` ,
-ADD `sys_perm_user` VARCHAR( 5 ) NOT NULL AFTER `sys_groupid` ,
-ADD `sys_perm_group` VARCHAR( 5 ) NOT NULL AFTER `sys_perm_user` ,
-ADD `sys_perm_other` VARCHAR( 5 ) NOT NULL AFTER `sys_perm_group` ;
\ No newline at end of file