Drop blank line

Author: zero323

python/pyspark/sql/tests/test_column.py

@@ -118,7 +118,6 @@ def test_column_name_with_non_ascii(self):
         self.assertEqual(1, df.select(df["数量"]).first()[0])
         self.assertTrue(columnName in repr(df[columnName]))
 
-
     def test_field_accessor(self):
         df = self.sc.parallelize([Row(l=[1], r=Row(a=1, b="b"), d={"k": "v"})]).toDF()
         self.assertEqual(1, df.select(df.l[0]).first()[0])