From dae8a440a48250baa29bea48a6f26e65175b4431 Mon Sep 17 00:00:00 2001
From: jbrockmendel <jbrockmendel@gmail.com>
Date: Mon, 24 Feb 2020 19:48:04 -0800
Subject: [PATCH] use ExtensionIndex._concat_same_dtype

---
 pandas/core/indexes/datetimelike.py | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/pandas/core/indexes/datetimelike.py b/pandas/core/indexes/datetimelike.py
index 1b3b6934aa53a..22836f4c8f08c 100644
--- a/pandas/core/indexes/datetimelike.py
+++ b/pandas/core/indexes/datetimelike.py
@@ -551,14 +551,6 @@ def _summary(self, name=None) -> str:
         result = result.replace("'", "")
         return result
 
-    def _concat_same_dtype(self, to_concat, name):
-        """
-        Concatenate to_concat which has the same class.
-        """
-        new_data = type(self._data)._concat_same_type(to_concat)
-
-        return self._simple_new(new_data, name=name)
-
     def shift(self, periods=1, freq=None):
         """
         Shift index by desired number of time frequency increments.