Fix lint

Author: David Hirschfeld

pandas/tests/tseries/holiday/test_calendar.py

@@ -105,8 +105,5 @@ class NoHolidaysCalendar(AbstractHolidayCalendar):
         pass
 
     cal = NoHolidaysCalendar()
-    holidays = cal.holidays(
-        Timestamp("01-Jan-2020"),
-        Timestamp("01-Jan-2021")
-    )
+    holidays = cal.holidays(Timestamp("01-Jan-2020"), Timestamp("01-Jan-2021"))
     assert holidays.empty

pandas/tseries/holiday.py

@@ -7,9 +7,8 @@
 
 from pandas.errors import PerformanceWarning
 
-from pandas import (
-    DateOffset, DatetimeIndex, Series, Timestamp, concat, date_range,
-)
+from pandas import DateOffset, DatetimeIndex, Series, Timestamp, concat, date_range
+
 from pandas.tseries.offsets import Day, Easter