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)

src/server/scripts/Northrend/ObsidianSanctum/boss_sartharion.cpp

@@ -284,7 +284,6 @@ public:
             if (me->HasAura(SPELL_TWILIGHT_REVENGE))
                 me->RemoveAurasDueToSpell(SPELL_TWILIGHT_REVENGE);
 
-            me->ResetLootMode();
             me->SetHomePosition(3246.57f, 551.263f, 58.6164f, 4.66003f);
 
             achievProgress = 0;

src/server/scripts/Northrend/Ulduar/ulduar/boss_general_vezax.cpp

@@ -106,9 +106,6 @@ public:
         {
             _Reset();
 
-            events.Reset();
-            summons.DespawnAll();
-            me->ResetLootMode();
             bShadowDodger = true;
             bSmellSaronite = true;
             bAnimusDead = false;