Core/Scripts: Remove now-unused WaypointPathStarted hook. WaypointStarted does everything it used to do, anyway.

Port From (https://github.com/TrinityCore/TrinityCore/commit/fc094509e9df59e055840936ba3389504fba87df)

Source/Game/AI/CoreAI/CreatureAI.cs

@@ -546,8 +546,6 @@ namespace Game.AI
 
         /// == Waypoints system =============================
         /// 
-        public virtual void WaypointPathStarted(uint pathId) { }
-
         public virtual void WaypointStarted(uint nodeId, uint pathId) { }
 
         public virtual void WaypointReached(uint nodeId, uint pathId) { }

Source/Game/AI/SmartScripts/SmartAI.cs

@@ -390,11 +390,6 @@ namespace Game.AI
             return true;
         }
 
-        public override void WaypointPathStarted(uint pathId)
-        {
-            // SmartAI::WaypointStarted() already handles the case of starting the 1st waypoint
-        }
-
         public override void WaypointStarted(uint nodeId, uint pathId)
         {
             GetScript().ProcessEventsFor(SmartEvents.WaypointStart, null, nodeId, pathId);

Source/Game/Movement/Generators/WaypointMovement.cs

@@ -119,11 +119,6 @@ namespace Game.Movement
             owner.StopMoving();
 
             _nextMoveTime.Reset(1000);
-
-            // inform AI
-            CreatureAI ai = owner.GetAI();
-            if (ai != null)
-                ai.WaypointPathStarted(_path.id);
         }
 
         public override void DoReset(Creature owner)