Let world dispatch expedition expire warnings

This depends on C++14 remaining enabled for chrono literals

zone/expedition.cpp

@@ -1742,16 +1742,6 @@ void Expedition::SendWorldSetSecondsRemaining(uint32_t seconds_remaining)
 	worldserver.SendPacket(pack.get());
 }
 
-void Expedition::SendWorldExpireWarning(uint32_t minutes_remaining)
-{
-	uint32_t pack_size = sizeof(ServerExpeditionExpireWarning_Struct);
-	auto pack = std::unique_ptr<ServerPacket>(new ServerPacket(ServerOP_ExpeditionExpireWarning, pack_size));
-	auto buf = reinterpret_cast<ServerExpeditionExpireWarning_Struct*>(pack->pBuffer);
-	buf->expedition_id = GetID();
-	buf->minutes_remaining = minutes_remaining;
-	worldserver.SendPacket(pack.get());
-}
-
 void Expedition::AddLockoutByCharacterID(
 	uint32_t character_id, const std::string& expedition_name, const std::string& event_name,
 	uint32_t seconds, const std::string& uuid)

zone/expedition.h

@@ -142,7 +142,6 @@ public:
 	void SetLootEventBySpawnID(uint32_t spawn_id, const std::string& event_name);
 
 	void SendClientExpeditionInfo(Client* client);
-	void SendWorldExpireWarning(uint32_t minutes);
 	void SendWorldPendingInvite(const ExpeditionInvite& invite, const std::string& add_name);
 
 	void DzAddPlayer(Client* requester, const std::string& add_char_name, const std::string& swap_remove_name = {});

zone/zone.cpp

@@ -1524,16 +1524,13 @@ bool Zone::Process() {
 
 					if (minutes_warning > 0)
 					{
+						// expedition expire warnings are handled by world
 						auto expedition = Expedition::FindCachedExpeditionByZoneInstance(GetZoneID(), GetInstanceID());
-						if (expedition)
-						{
-							expedition->SendWorldExpireWarning(minutes_warning);
-						}
-						else
+						if (!expedition)
 						{
 							entity_list.ExpeditionWarning(minutes_warning);
+							Instance_Warning_timer = new Timer(10000);
 						}
-						Instance_Warning_timer = new Timer(10000);
 					}
 				}
 				else if(Instance_Warning_timer->Check())