diff --git a/source/CustomShipSale.h b/source/CustomShipSale.h
deleted file mode 100644
index 4b6d34c56864..000000000000
--- a/source/CustomShipSale.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/* CustomShipSale.h
-Copyright (c) 2024 by Loymdayddaud
-
-Endless Sky is free software: you can redistribute it and/or modify it under the
-terms of the GNU General Public License as published by the Free Software
-Foundation, either version 3 of the License, or (at your option) any later version.
-
-Endless Sky is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with
-this program. If not, see <https://www.gnu.org/licenses/>.
-*/
-
-#pragma once
-
-#include "ConditionSet.h"
-#include "LocationFilter.h"
-#include "Sale.h"
-#include "Set.h"
-
-#include <functional>
-#include <map>
-#include <set>
-#include <string>
-
-class ConditionsStore;
-class DataNode;
-class Planet;
-class Ship;
-
-
-
-// Class used to stock ship and their local changes, being prices and sell types,
-// linked by a ship or group of ships (aka shipyards).
-class CustomShipSale {
-public:
-	// Sell types: none is meant to be default, meaning the visibility depends on the shipyard,
-	// import means it is shown whilst still not being buyable.
-	//
-	// The numbers correspond to the priority, import will override the default.
-	enum class SellType {
-		DEFAULT = 0,
-		IMPORT = 1
-	};
-
-
-public:
-	// If the changes are events that means the ships have already been loaded
-	// and we can call FinishLoading() straight away.
-	void Load(const DataNode &node, bool eventChange = false);
-	void FinishLoading();
-
-	// Adds another CustomShipSale to this one if the conditions allow it.
-	bool Add(const CustomShipSale &other, const Planet &planet, const ConditionsStore &store);
-
-	// Get the price of the item.
-	// Does not check conditions are met or the location is matched.
-	double GetRelativeCost(const Ship &item) const;
-
-	SellType GetSellType() const;
-
-	// Convert the given sellType into a string.
-	static const std::string &GetShown(SellType sellType);
-
-	bool Has(const Ship &item) const;
-
-	// Check if this planet with the given conditions of the player match the conditions of the CustomShipSale.
-	bool Matches(const Planet &planet, const ConditionsStore &playerConditions) const;
-
-	bool IsEmpty();
-
-
-public:
-	std::string name;
-	LocationFilter locationFilter;
-	ConditionSet conditions;
-	const Planet *location = nullptr;
-
-	std::map<const Sale<Ship> *, double> relativePrices;
-	std::map<const Sale<Ship> *, double> relativeOffsets;
-
-	std::map<const Ship *, double> relativeShipPrices;
-	std::map<const Ship *, double> relativeShipOffsets;
-
-	// All ships this CustomShipSale has, kept in cache.
-	Sale<Ship> seen;
-	bool cacheValid = false;
-
-	SellType sellType = SellType::DEFAULT;
-
-	// When loading we cannot be sure all ships are loaded, so store those we need to convert into relative values.
-	std::vector<std::pair<const Ship *, double *>> toConvert;
-
-
-private:
-	void Clear();
-};