diff --git a/brmbar3/schema/0012-shop-add-credit.sql b/brmbar3/schema/0012-shop-add-credit.sql
index 48f2da6..00318ae 100644
--- a/brmbar3/schema/0012-shop-add-credit.sql
+++ b/brmbar3/schema/0012-shop-add-credit.sql
@@ -55,52 +55,6 @@ $$;
 
 
 
-CREATE OR REPLACE FUNCTION public.undo_sale_of_item(
-	i_item_id public.accounts.id%TYPE,
-	i_amount INTEGER,
-	i_user_id public.accounts.id%TYPE,
-	i_target_currency_id public.currencies.id%TYPE,
-	i_description TEXT
-) RETURNS NUMERIC
-LANGUAGE plpgsql
-AS $$
-DECLARE
-	v_buy_rate NUMERIC;
-	v_sell_rate NUMERIC;
-	v_cost NUMERIC;
-	v_profit NUMERIC;
-	v_transaction_id public.transactions.id%TYPE;
-BEGIN
-	-- Get the buy and sell rates from the stored functions
-	v_buy_rate := public.find_buy_rate(i_item_id, i_target_currency_id);
-	v_sell_rate := public.find_sell_rate(i_item_id, i_target_currency_id);
-
-	-- Calculate cost and profit
-	v_cost := i_amount * v_sell_rate;
-	v_profit := i_amount * (v_sell_rate - v_buy_rate);
-
-	-- Create a new transaction
-	v_transaction_id := brmbar_privileged.create_transaction(i_user_id, i_description);
-
-	-- the item (decrease stock)
-	INSERT INTO public.transaction_splits (transaction, side, account, amount, memo)
-	VALUES (i_transaction_id, 'debit', i_item_id, i_amount,
-	(SELECT "name" || ' (sale undo)' FROM public.accounts WHERE id = i_user_id));
-
-	-- the user
-	INSERT INTO public.transaction_splits (transaction, side, account, amount, memo)
-	VALUES (i_transaction_id, 'credit', i_user_id, v_cost,
-	(SELECT "name" || ' (sale undo)' FROM public.accounts WHERE id = i_item_id));
-
-	-- the profit
-	INSERT INTO public.transaction_splits (transaction, side, account, amount, memo)
-	VALUES (i_transaction_id, 'credit', (SELECT account_id FROM accounts WHERE name = 'BrmBar Profits'), v_profit, (SELECT 'Margin repaid on ' || "name" FROM public.accounts WHERE id = i_item_id));
-
-	-- Return the cost
-	RETURN v_cost;
-END;
-$$;
-
 PERFORM brmbar_privileged.upgrade_schema_version_to(12);
 END IF;