Remove unused import.

Signed-off-by: HE, Tao <[email protected]>

Author: sighingnow

pandas/plotting/_core.py

@@ -15,8 +15,7 @@
 from pandas.util._decorators import Appender, cache_readonly
 
 from pandas.core.dtypes.common import (
-    is_extension_array_dtype, is_hashable, is_integer, is_iterator,
-    is_list_like, is_number)
+    is_hashable, is_integer, is_iterator, is_list_like, is_number)
 from pandas.core.dtypes.generic import (
     ABCDataFrame, ABCIndexClass, ABCMultiIndex, ABCPeriodIndex, ABCSeries)
 from pandas.core.dtypes.missing import isna, notna, remove_na_arraylike