Implement a general way to store selection data for gossip and fix trainer exploit

Game/Entities/Player/Player.Fields.cs

@@ -140,8 +140,6 @@ namespace Game.Entities
 
         RestMgr _restMgr;
 
-        uint _currentTrainerId;
-
         //Combat 
         int[] baseRatingValue = new int[(int)CombatRating.Max];
         public float[][] m_auraBaseMod = new float[(int)BaseModGroup.End][];

Game/Entities/Player/Player.cs

@@ -1034,9 +1034,6 @@ namespace Game.Entities
 
         public RestMgr GetRestMgr() { return _restMgr; }
 
-        public uint GetCurrentTrainerId() { return _currentTrainerId; }
-        public void SetCurrentTrainerId(uint trainerId) { _currentTrainerId = trainerId; }
-
         public bool IsAdvancedCombatLoggingEnabled()  { return _advancedCombatLoggingEnabled; }
         public void SetAdvancedCombatLogging(bool enabled) { _advancedCombatLoggingEnabled = enabled; }