DB/SAI: Fix a DB error

Origin: https://github.com/TrinityCore/TrinityCore/commit/91de0322bba3ef071338ce5a71f512369486eb1f

sql/updates/world/2015_11_03_02_world.sql

@@ -0,0 +1,2 @@
+-- 
+UPDATE `smart_scripts` SET `link`=0 WHERE `entryorguid`=16573 AND `source_type`=0 AND `id`=7;