DB/Creature: Remove some incorrect bytes from Coilskar mobs

Closes #6891

sql/updates/world/2014_07_21_00_world_misc.sql

@@ -0,0 +1,3 @@
+--
+DELETE FROM `creature_addon` WHERE `guid` IN (SELECT `guid` FROM `creature` WHERE `id` = 19768);
+UPDATE creature_template_addon SET `bytes1`=0, `bytes2`=0 WHERE `entry` IN (19762, 19768, 19784);