feat(Core/Maps): AreaBoundary (#10525)

* cherry-picked commit (2da458c56d)

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

@@ -344,7 +344,6 @@ struct ScriptedAI : public CreatureAI
     void SetCombatMovement(bool allowMovement);
     bool IsCombatMovementAllowed() const { return _isCombatMovementAllowed; }
 
-    bool EnterEvadeIfOutOfCombatArea();
     virtual bool CheckEvadeIfOutOfCombatArea() const { return false; }
 
     // return true for heroic mode. i.e.
@@ -416,7 +415,6 @@ struct ScriptedAI : public CreatureAI
 
 private:
     Difficulty _difficulty;
-    uint32 _evadeCheckCooldown;
     bool _isCombatMovementAllowed;
     bool _isHeroic;
 };
@@ -428,7 +426,6 @@ public:
     ~BossAI() override {}
 
     InstanceScript* const instance;
-    BossBoundaryMap const* GetBoundary() const { return _boundary; }
 
     void JustSummoned(Creature* summon) override;
     void SummonedCreatureDespawn(Creature* summon) override;
@@ -453,23 +450,12 @@ protected:
     void _JustDied();
     void _JustReachedHome() { me->setActive(false); }
 
-    bool CheckInRoom()
-    {
-        if (CheckBoundary(me))
-            return true;
-
-        EnterEvadeMode();
-        return false;
-    }
-
-    bool CheckBoundary(Unit* who);
     void TeleportCheaters();
 
     EventMap events;
     SummonList summons;
 
 private:
-    BossBoundaryMap const* const _boundary;
     uint32 const _bossId;
 };