DB: removed bad sai from a trigger npc that is supsed to be used in multiple places

sql/updates/world/custom/custom_2019_11_06_00_world.sql

@@ -0,0 +1,3 @@
+SET @GUID := -317632;
+UPDATE `creature_template` SET `AIName`="" WHERE `entry`= 42098;
+DELETE FROM `smart_scripts` WHERE `entryorguid`=@ENTRY AND `source_type`=0;