fix(DB/gameobject): Double stacked veins in Stranglethorn Vale (#4433)

data/sql/updates/pending_db_world/rev_1612401387393772200.sql

@@ -0,0 +1,4 @@
+INSERT INTO `version_db_world` (`sql_rev`) VALUES ('1612401387393772200');
+
+-- Removing Dupe Veins across lower parts of STV
+DELETE FROM `gameobject` WHERE `guid` IN (12189, 85752, 64095, 40021, 12150, 15430, 9465, 40021);