Removed backtesting funding-fee code

tests/exchange/test_binance.py

@@ -108,14 +108,6 @@ def test_stoploss_adjust_binance(mocker, default_conf):
     assert not exchange.stoploss_adjust(1501, order)
 
 
-def test_get_funding_rate():
-    return
-
-
-def test__get_funding_fee():
-    return
-
-
 @pytest.mark.asyncio
 async def test__async_get_historic_ohlcv_binance(default_conf, mocker, caplog):
     ohlcv = [

tests/exchange/test_exchange.py

@@ -3044,15 +3044,3 @@ def test_get_funding_fees(default_conf, mocker, exchange_name):
         pair="XRP/USDT",
         since=unix_time
     )
-
-
-def test_get_mark_price():
-    return
-
-
-def test_get_funding_fee_dates():
-    return
-
-
-def test_calculate_funding_fees():
-    return

tests/exchange/test_ftx.py

@@ -1,4 +1,3 @@
-from datetime import datetime, timedelta
 from random import randint
 from unittest.mock import MagicMock
 
@@ -192,18 +191,3 @@ def test_get_order_id(mocker, default_conf):
         }
     }
     assert exchange.get_order_id_conditional(order) == '1111'
-
-
-@pytest.mark.parametrize("pair,when", [
-    ('XRP/USDT', datetime.utcnow()),
-    ('ADA/BTC', datetime.utcnow()),
-    ('XRP/USDT', datetime.utcnow() - timedelta(hours=30)),
-])
-def test__get_funding_rate(default_conf, mocker, pair, when):
-    api_mock = MagicMock()
-    exchange = get_patched_exchange(mocker, default_conf, api_mock, id="ftx")
-    assert exchange._get_funding_rate(pair, when) is None
-
-
-def test__get_funding_fee():
-    return