Remove AMZN data import kernc#316

Author: zlpatel

backtesting/test/__init__.py

@@ -15,9 +15,6 @@ def _read_file(filename):
 EURUSD = _read_file('EURUSD.csv')
 """DataFrame of hourly EUR/USD forex data from April 2017 to February 2018."""
 
-AMZN = _read_file('AMZN.csv')
-"""DataFrame of daily NASDAQ:AMZN (Amazon) stock price data from 15/05/1997 to 23/04/2021."""
-
 def SMA(arr: pd.Series, n: int) -> pd.Series:
     """
     Returns `n`-period simple moving average of array `arr`.