chore: remove bt_open_open_trade_count_candle

it's no longer necessary if we support in-candle entries

freqtrade/optimize/backtesting.py

@@ -1488,7 +1488,6 @@ class Backtesting:
             # Reset open trade count for this candle
             # Critical to avoid exceeding max_open_trades in backtesting
             # when timeframe-detail is used and trades close within the opening candle.
-            LocalTrade.bt_open_open_trade_count_candle = LocalTrade.bt_open_open_trade_count
             strategy_safe_wrapper(self.strategy.bot_loop_start, supress_error=True)(
                 current_time=current_time
             )

freqtrade/persistence/trade_model.py

@@ -391,7 +391,6 @@ class LocalTrade:
     # Copy of trades_open - but indexed by pair
     bt_trades_open_pp: dict[str, list["LocalTrade"]] = defaultdict(list)
     bt_open_open_trade_count: int = 0
-    bt_open_open_trade_count_candle: int = 0
     bt_total_profit: float = 0
     realized_profit: float = 0
 
@@ -760,7 +759,6 @@ class LocalTrade:
         LocalTrade.bt_trades_open = []
         LocalTrade.bt_trades_open_pp = defaultdict(list)
         LocalTrade.bt_open_open_trade_count = 0
-        LocalTrade.bt_open_open_trade_count_candle = 0
         LocalTrade.bt_total_profit = 0
 
     def adjust_min_max_rates(self, current_price: float, current_price_low: float) -> None:
@@ -1462,11 +1460,6 @@ class LocalTrade:
         LocalTrade.bt_trades_open.remove(trade)
         LocalTrade.bt_trades_open_pp[trade.pair].remove(trade)
         LocalTrade.bt_open_open_trade_count -= 1
-        if (trade.close_date_utc - trade.open_date_utc) > timedelta(minutes=trade.timeframe):
-            # Only subtract trades that are open for more than 1 candle
-            # To avoid exceeding max_open_trades.
-            # Must be reset at the start of every candle during backesting.
-            LocalTrade.bt_open_open_trade_count_candle -= 1
         LocalTrade.bt_trades.append(trade)
         LocalTrade.bt_total_profit += trade.close_profit_abs
 
@@ -1476,7 +1469,6 @@ class LocalTrade:
             LocalTrade.bt_trades_open.append(trade)
             LocalTrade.bt_trades_open_pp[trade.pair].append(trade)
             LocalTrade.bt_open_open_trade_count += 1
-            LocalTrade.bt_open_open_trade_count_candle += 1
         else:
             LocalTrade.bt_trades.append(trade)
 
@@ -1485,9 +1477,6 @@ class LocalTrade:
         LocalTrade.bt_trades_open.remove(trade)
         LocalTrade.bt_trades_open_pp[trade.pair].remove(trade)
         LocalTrade.bt_open_open_trade_count -= 1
-        # TODO: The below may have odd behavior in case of canceled entries
-        # It might need to be removed so the trade "counts" as open for this candle.
-        LocalTrade.bt_open_open_trade_count_candle -= 1
 
     @staticmethod
     def get_open_trades() -> list[Any]:

tests/persistence/test_persistence.py

@@ -2145,7 +2145,6 @@ def test_Trade_object_idem():
         "bt_trades_open",
         "bt_trades_open_pp",
         "bt_open_open_trade_count",
-        "bt_open_open_trade_count_candle",
         "bt_total_profit",
         "from_json",
     )