add order_time_in_force in _ft_has and revert binance

freqtrade/exchange/binance.py

@@ -11,6 +11,7 @@ class Binance(Exchange):
 
     _ft_has: Dict = {
         "stoploss_on_exchange": True,
+        "order_time_in_force": ['gtc', 'fok', 'ioc'],
     }
 
     def get_order_book(self, pair: str, limit: int = 100) -> dict:
@@ -24,9 +25,3 @@ class Binance(Exchange):
         limit = min(list(filter(lambda x: limit <= x, limit_range)))
 
         return super().get_order_book(pair, limit)
-
-    def validate_order_time_in_force(self, order_time_in_force: Dict) -> None:
-        """
-        Checks if order time in force configured in strategy/config are supported
-        """
-        pass