Drop duplicate indices

[Yousinator]

• [x] closes #58648
• [ ] Tests added and passed if fixing a bug or adding a new feature
• [x] All code checks passed.
• [x] Added type annotations to new arguments/methods/functions.
• [x] Added an entry in the latest doc/source/whatsnew/vX.X.X.rst file if fixing a bug or adding a new feature.

Tests are added but have not been run, as I get this error when I try to run them. I tried all envorment setup options but I end-up having the same error

root@92c4f0dec9a0:/home/pandas# pytest pandas/tests/frame/methods/test_drop_duplicates.py
ImportError while loading conftest '/home/pandas/pandas/conftest.py'.
pandas/__init__.py:47: in <module>
    from pandas.core.api import (
pandas/core/api.py:46: in <module>
    from pandas.core.groupby import (
pandas/core/groupby/__init__.py:1: in <module>
    from pandas.core.groupby.generic import (
pandas/core/groupby/generic.py:1418: in <module>
    class DataFrameGroupBy(GroupBy[DataFrame]):
pandas/core/groupby/generic.py:2571: in DataFrameGroupBy
    @doc(DataFrame.plot.__doc__)
E   AttributeError: type object 'DataFrame' has no attribute 'plot'

[Yousinator]

Most of these tests are failing because of the same error mentioned earlier

AttributeError: type object 'DataFrame' has no attribute 'plot'

others like precommit fail from parts that I haven't edited