un-implement copy

Author: jbrockmendel

pandas/core/arrays/datetimelike.py

@@ -155,6 +155,7 @@ def asi8(self):
     #   factorize
     #   _formatting_values
     #   _reduce
+    #   copy
 
     def _validate_fill_value(self, fill_value):
         """
@@ -196,10 +197,6 @@ def _concat_same_type(cls, to_concat):
         values = np.concatenate([x._data for x in to_concat])
         return cls._simple_new(values, freq=freq)
 
-    def copy(self, deep=False):
-        # TODO: ignoring `deep`?
-        return self._shallow_copy(self._data.copy())
-
     # ------------------------------------------------------------------
     # Array-like Methods