[Item Ticks] Remove Item Ticks Code (#3955)

* [Items] Convert Load of Item Ticks to Repositories

- Convert `LoadItemTicks()` to repositories.

* Remove item tick code.

* Remove repository references.

* Update zone.h

zone/zone.h

@@ -77,14 +77,6 @@ struct ZoneEXPModInfo {
 	float AAExpMod;
 };
 
-struct item_tick_struct {
-	uint32      itemid;
-	uint32      chance;
-	uint32      level;
-	int16       bagslot;
-	std::string qglobal;
-};
-
 class Client;
 class Expedition;
 class Map;
@@ -219,7 +211,6 @@ public:
 
 	std::pair<AA::Ability *, AA::Rank *> GetAlternateAdvancementAbilityAndRank(int id, int points_spent);
 
-	std::unordered_map<int, item_tick_struct>             tick_items;
 	std::unordered_map<int, std::unique_ptr<AA::Ability>> aa_abilities;
 	std::unordered_map<int, std::unique_ptr<AA::Rank>>    aa_ranks;
 
@@ -285,7 +276,6 @@ public:
 	void LoadNewMerchantData(uint32 merchantid);
 	void LoadNPCEmotes(std::vector<NPC_Emote_Struct *> *NPCEmoteList);
 	void LoadTempMerchantData();
-	void LoadTickItems();
 	void LoadVeteranRewards();
 	void LoadZoneDoors();
 	void ReloadStaticData();