Add fill_leverage_brackets and get_max_leverage back in

freqtrade/persistence/models.py

@@ -707,7 +707,6 @@ class LocalTrade():
                 return float(self._calc_base_close(amount, rate, fee) - total_interest)
 
         elif (trading_mode == TradingMode.FUTURES):
-            self.add_funding_fees()
             funding_fees = self.funding_fees or 0.0
             if self.is_short:
                 return float(self._calc_base_close(amount, rate, fee)) - funding_fees
@@ -789,19 +788,6 @@ class LocalTrade():
         else:
             return None
 
-    def add_funding_fees(self):
-        if self.trading_mode == TradingMode.FUTURES:
-            # TODO-lev: Calculate this correctly and add it
-            # if self.config['runmode'].value in ('backtest', 'hyperopt'):
-            #   self.funding_fees = getattr(Exchange, self.exchange).calculate_funding_fees(
-            #     self.exchange,
-            #     self.pair,
-            #     self.amount,
-            #     self.open_date_utc,
-            #     self.close_date_utc
-            #   )
-            return
-
     @staticmethod
     def get_trades_proxy(*, pair: str = None, is_open: bool = None,
                          open_date: datetime = None, close_date: datetime = None,