SAT-2941 - SDC: Function tests failed for all platforms (#881)

Clean usage of parquet.

sdc/tests/gen_test_data.py

@@ -120,16 +120,6 @@ def generate_csv_data():
     with open("csv_data_date1.csv", "w") as f:
         f.write(data)
 
-    # generated data for parallel merge_asof testing
-    df1 = pd.DataFrame({'time': pd.DatetimeIndex(
-        ['2017-01-03', '2017-01-06', '2017-02-15', '2017-02-21']),
-        'B': [4, 5, 9, 6]})
-    df2 = pd.DataFrame({'time': pd.DatetimeIndex(
-        ['2017-01-01', '2017-01-14', '2017-01-16', '2017-02-23', '2017-02-23',
-         '2017-02-25']), 'A': [2, 3, 7, 8, 9, 10]})
-    df1.to_parquet("asof1.pq")
-    df2.to_parquet("asof2.pq")
-
 
 def generate_other_data():
     df = pd.DataFrame({'A': ['bc'] + ["a"] * 3 + ["bc"] * 3 + ['a'], 'B': [-8, 1, 2, 3, 1, 5, 6, 7]})