Adjust imports in tests to new path

tests/strategy/test_default_strategy.py

@@ -1,19 +1,8 @@
-import json
-
-import pytest
 from pandas import DataFrame
 
-from freqtrade.data.converter import parse_ticker_dataframe
 from freqtrade.strategy.default_strategy import DefaultStrategy
 
 
-@pytest.fixture
-def result():
-    with open('freqtrade/tests/testdata/ETH_BTC-1m.json') as data_file:
-        return parse_ticker_dataframe(json.load(data_file), '1m', pair="UNITTEST/BTC",
-                                      fill_missing=True)
-
-
 def test_default_strategy_structure():
     assert hasattr(DefaultStrategy, 'minimal_roi')
     assert hasattr(DefaultStrategy, 'stoploss')