simplify test

pandas/tests/copy_view/test_replace.py

@@ -357,14 +357,11 @@ def test_replace_empty_list(using_copy_on_write):
 
 
 @pytest.mark.parametrize("value", ["d", None])
-def test_replace_object_list_inplace(using_copy_on_write, using_infer_string, value):
+def test_replace_object_list_inplace(using_copy_on_write, value):
     df = DataFrame({"a": ["a", "b", "c"]}, dtype=object)
     arr = get_array(df, "a")
-    # with future.infer_string we get warning about object dtype getting cast
-    warning = FutureWarning if using_infer_string and value is not None else None
-    with tm.assert_produces_warning(warning):
-        df.replace(["c"], value, inplace=True)
-    if (using_copy_on_write or value is None) and not warning:
+    df.replace(["c"], value, inplace=True)
+    if using_copy_on_write or value is None:
         assert np.shares_memory(arr, get_array(df, "a"))
     else:
         # This could be inplace