TST/CLN: remove duplicate data file used in tests (unicode_series.csv) (#22723)

Author: simonjayhawkins

pandas/tests/io/formats/data/unicode_series.csv

@@ -955,7 +955,7 @@ def test_unicode_problem_decoding_as_ascii(self):
         compat.text_type(dm.to_string())
 
     def test_string_repr_encoding(self, datapath):
-        filepath = datapath('io', 'formats', 'data', 'unicode_series.csv')
+        filepath = datapath('io', 'parser', 'data', 'unicode_series.csv')
         df = pd.read_csv(filepath, header=None, encoding='latin1')
         repr(df)
         repr(df[1])