rm dev-tools/python-bindings, no longer needed after migration to Swig

dev-tools/python-bindings/README

dev-tools/python-bindings/codegenerator.py

dev-tools/python-bindings/settings_core.py

dev-tools/python-bindings/settings_fit.py

dev-tools/python-bindings/test_docstring.py

dev-tools/python-bindings/utils_build.py

dev-tools/python-bindings/utils_docstring.py

dev-tools/python-bindings/utils_install.py