DB/Quest: Remove Deprecated Quests

Closes #21940

sql/updates/world/3.3.5/2018_05_15_00_world_335.sql

@@ -0,0 +1,5 @@
+-- 
+DELETE FROM `disables` WHERE `sourceType`=1 AND `entry` IN (4485,4486);
+INSERT INTO `disables` (`sourceType`, `entry`, `flags`, `params_0`, `params_1`, `comment`) VALUES
+(1,4485,0,"","","Deprecated quest"),
+(1,4486,0,"","","Deprecated quest");