Revert test_strings.py changes and remove accidental whatsnew file

Author: Aniketsy

doc/source/whatsnew/v2.3.2

@@ -281,6 +281,15 @@ def test_contains_nan(any_string_dtype):
     tm.assert_series_equal(result, expected)
 
 
+def test_str_contains_compiled_regex_arrow_dtype(any_string_dtype):
+    ser = Series(["foo", "bar", "baz"], dtype=any_string_dtype)
+    pat = re.compile("ba.")
+    result = ser.str.contains(pat)
+    assert str(result.dtype) == "bool[pyarrow]"
+    expected = Series([False, True, True], dtype="bool[pyarrow]")
+    tm.assert_series_equal(result, expected)
+
+
 # --------------------------------------------------------------------------------------
 # str.startswith
 # --------------------------------------------------------------------------------------

pandas/tests/strings/test_find_replace.py

@@ -2,7 +2,6 @@
     datetime,
     timedelta,
 )
-import re
 
 import numpy as np
 import pytest
@@ -177,16 +176,6 @@ def test_empty_str_methods(any_string_dtype):
     tm.assert_series_equal(empty_str, empty.str.translate(table))
 
 
-@pytest.mark.parametrize("dtype", ["string[pyarrow]"])
-def test_str_contains_compiled_regex_arrow_dtype(dtype):
-    ser = Series(["foo", "bar", "baz"], dtype=dtype)
-    pat = re.compile("ba.")
-    result = ser.str.contains(pat)
-    assert str(result.dtype) == "bool[pyarrow]"
-    expected = Series([False, True, True], dtype="bool[pyarrow]")
-    tm.assert_series_equal(result, expected)
-
-
 @pytest.mark.parametrize(
     "method, expected",
     [