Revert "Fixed metadata propagation in Dataframe.idxmax and Dataframe.idxmin #… (pandas-dev#47821)"

This reverts commit b0a51fe.

Author: dannyi96

pandas/core/frame.py

@@ -11010,8 +11010,7 @@ def idxmin(
 
         index = data._get_axis(axis)
         result = [index[i] if i >= 0 else np.nan for i in indices]
-        final_result = data._constructor_sliced(result, index=data._get_agg_axis(axis))
-        return final_result.__finalize__(self, method="idxmin")
+        return data._constructor_sliced(result, index=data._get_agg_axis(axis))
 
     @doc(_shared_docs["idxmax"], numeric_only_default="False")
     def idxmax(
@@ -11036,8 +11035,7 @@ def idxmax(
 
         index = data._get_axis(axis)
         result = [index[i] if i >= 0 else np.nan for i in indices]
-        final_result = data._constructor_sliced(result, index=data._get_agg_axis(axis))
-        return final_result.__finalize__(self, method="idxmax")
+        return data._constructor_sliced(result, index=data._get_agg_axis(axis))
 
     def _get_agg_axis(self, axis_num: int) -> Index:
         """

pandas/tests/generic/test_finalize.py

@@ -226,9 +226,17 @@
     pytest.param(
         (pd.DataFrame, frame_data, operator.methodcaller("nunique")),
     ),
-    (pd.DataFrame, frame_data, operator.methodcaller("idxmin")),
-    (pd.DataFrame, frame_data, operator.methodcaller("idxmax")),
-    (pd.DataFrame, frame_data, operator.methodcaller("mode")),
+    pytest.param(
+        (pd.DataFrame, frame_data, operator.methodcaller("idxmin")),
+        marks=not_implemented_mark,
+    ),
+    pytest.param(
+        (pd.DataFrame, frame_data, operator.methodcaller("idxmax")),
+        marks=not_implemented_mark,
+    ),
+    pytest.param(
+        (pd.DataFrame, frame_data, operator.methodcaller("mode")),
+    ),
     pytest.param(
         (pd.Series, [0], operator.methodcaller("mode")),
         marks=not_implemented_mark,