CLN: MultiIndex._values remove special casing for Timestamp.freq (#49559)

Author: lukemanley

pandas/core/indexes/multi.py

@@ -732,23 +732,13 @@ def _values(self) -> np.ndarray:
                 vals = cast("CategoricalIndex", vals)
                 vals = vals._data._internal_get_values()
 
-            is_dti = isinstance(vals, ABCDatetimeIndex)
-
-            if is_dti:
-                # TODO: this can be removed after Timestamp.freq is removed
-                # The astype(object) below does not remove the freq from
-                # the underlying Timestamps so we remove it here to match
-                # the behavior of self._get_level_values
-                vals = algos.take_nd(vals, codes, fill_value=index._na_value)
-
             if isinstance(vals.dtype, ExtensionDtype) or isinstance(
                 vals, (ABCDatetimeIndex, ABCTimedeltaIndex)
             ):
                 vals = vals.astype(object)
 
             vals = np.array(vals, copy=False)
-            if not is_dti:
-                vals = algos.take_nd(vals, codes, fill_value=index._na_value)
+            vals = algos.take_nd(vals, codes, fill_value=index._na_value)
             values.append(vals)
 
         arr = lib.fast_zip(values)