[Doctest] Add configuration_roformer.py (#26530)
* [Doctest] Add configuration_roformer.py
* [Doctest] Add configuration_roformer.py
* [Doctest] Add configuration_roformer.py
* [Doctest] Add configuration_roformer.py
* Removed documentation_test.txt
* Removed configuration_roformer.py
* Update not_doctested.txt