DB/Misc: Fix error

sql/updates/world/2015_03_24_00_world.sql

@@ -0,0 +1,2 @@
+DELETE FROM `smart_scripts` WHERE  `entryorguid`=21685 AND `source_type`=0 AND `id`=16 AND `link`=0;
+UPDATE `smart_scripts` SET `link`=0 WHERE  `entryorguid`=21685 AND `source_type`=0 AND `id`=15 AND `link`=16;