Revert "Add root config file support for analysis tuning and improve SoMEF failure handling"

[Anas-Elhounsri]

Reverts #88 as it does seem to fails all the tests due to missing config script:

src/rsmetacheck/detect_pitfalls_main.py:8: in <module>
    from rsmetacheck.config import AnalysisConfig
E   ModuleNotFoundError: No module named 'rsmetacheck.config'