diff --git a/zipline/finance/trading.py b/zipline/finance/trading.py
index 8c979562..cfaf0b02 100644
--- a/zipline/finance/trading.py
+++ b/zipline/finance/trading.py
@@ -224,10 +224,3 @@ class TradingEnvironment(object):
             return None
 
         return j - i
-
-    def get_benchmark_daily_return(self, test_date):
-        date = self.normalize_date(test_date)
-        if date in self.trading_day_map:
-            return self.trading_day_map[date].returns
-        else:
-            return 0.0