chore: remove unused property

Author: xmatthias

freqtrade/plugins/pairlist/MarketCapPairList.py

@@ -37,7 +37,6 @@ def __init__(self, *args, **kwargs) -> None:
         self._refresh_period = self._pairlistconfig.get("refresh_period", 86400)
         self._categories = self._pairlistconfig.get("categories", [])
         self._marketcap_cache: TTLCache = TTLCache(maxsize=1, ttl=self._refresh_period)
-        self._def_candletype = self._config["candle_type_def"]
 
         _coingecko_config = self._config.get("coingecko", {})