fix(Scripts/ObsidianSanctum): Fix Tenebron respawning (#17576)

fix(Scripts/ObsidianSanctum): Fix Shadron respawning

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

@@ -874,7 +874,7 @@ struct boss_sartharion_dragonAI : public BossAI
                 Talk(SAY_TENEBRON_DEATH);
                 if (!isCalledBySartharion || instance->GetBossState(DATA_SARTHARION) != IN_PROGRESS)
                 {
-                    instance->SetBossState(DATA_SHADRON, DONE);
+                    instance->SetBossState(DATA_TENEBRON, DONE);
                 }
                 break;
             }

src/server/scripts/Northrend/ChamberOfAspects/ObsidianSanctum/instance_obsidian_sanctum.cpp

@@ -46,17 +46,6 @@ public:
             LoadBossBoundaries(boundaries);
         }
 
-        bool IsEncounterInProgress() const override
-        {
-            for (uint8 i = 0; i < MAX_ENCOUNTERS; ++i)
-            {
-                if (GetBossState(i) == IN_PROGRESS)
-                    return true;
-            }
-
-            return false;
-        }
-
         void OnCreatureCreate(Creature* pCreature) override
         {
             switch(pCreature->GetEntry())
@@ -150,20 +139,6 @@ public:
             return false;
         }
 
-        bool SetBossState(uint32 type, EncounterState state) override
-        {
-            if (InstanceScript::SetBossState(type, state))
-            {
-                return false;
-            }
-
-            if (state == DONE)
-            {
-                SaveToDB();
-            }
-            return true;
-        }
-
         void DoAction(int32 action) override
         {
             switch (action)