STYLE: remove use in pd.api.dtype in test_bool.py (pandas-dev#39203)

Author: nofarmish

pandas/tests/extension/arrow/test_bool.py

@@ -4,6 +4,7 @@
 import pandas as pd
 import pandas._testing as tm
 from pandas.tests.extension import base
+from pandas.api.types import is_bool_dtype
 
 pytest.importorskip("pyarrow", minversion="0.13.0")
 
@@ -89,7 +90,7 @@ class TestReduceBoolean(base.BaseBooleanReduceTests):
 
 
 def test_is_bool_dtype(data):
-    assert pd.api.types.is_bool_dtype(data)
+    assert is_bool_dtype(data)
     assert pd.core.common.is_bool_indexer(data)
     s = pd.Series(range(len(data)))
     result = s[data]