fix: remove redundancy regarding license from project metadata (#93)

hopefully fixes

>  setuptools.errors.InvalidConfigError: License classifiers have been superseded by license expressions (see https://peps.python.org/pep-0639/). Please remove:
License :: OSI Approved :: MIT License

Author: hf-kklein

pyproject.toml

@@ -9,7 +9,6 @@ classifiers = [
     "Development Status :: 3 - Alpha",
     "Environment :: Console",
     "Intended Audience :: Developers",
-    "License :: OSI Approved :: MIT License",
     "Natural Language :: English",
     "Operating System :: MacOS :: MacOS X",
     "Operating System :: Microsoft :: Windows",