TST/CLN: remove TestData from tests\frame\test_rank.py (#26739)

Author: simonjayhawkins

pandas/tests/frame/test_rank.py

@@ -4,12 +4,11 @@
 import pytest
 
 from pandas import DataFrame, Series
-from pandas.tests.frame.common import TestData
 import pandas.util.testing as tm
 from pandas.util.testing import assert_frame_equal
 
 
-class TestRank(TestData):
+class TestRank:
     s = Series([1, 3, 4, 2, np.nan, 2, 1, 5, np.nan, 3])
     df = DataFrame({'A': s, 'B': s})