Core/ScriptedAI: Add ResetLootMode() to BossAI::_Reset() and remove some redundant calls in General Vezax script

src/server/game/AI/ScriptedAI/ScriptedCreature.cpp

@@ -518,6 +518,7 @@ void BossAI::_Reset()
     if (!me->isAlive())
         return;
 
+    me->ResetLootMode();
     events.Reset();
     summons.DespawnAll();
     if (instance)