Update README.md

Author: fabiocaccamo

README.md

@@ -9,7 +9,6 @@
 [![](https://img.shields.io/codecov/c/gh/fabiocaccamo/python-codicefiscale?logo=codecov)](https://codecov.io/gh/fabiocaccamo/python-codicefiscale)
 [![](https://img.shields.io/codacy/grade/8927f48c9498408f85167da9287edd86?logo=codacy)](https://www.codacy.com/app/fabiocaccamo/python-codicefiscale)
 [![](https://img.shields.io/scrutinizer/quality/g/fabiocaccamo/python-codicefiscale?logo=scrutinizer)](https://scrutinizer-ci.com/g/fabiocaccamo/python-codicefiscale/?branch=main)
-[![](https://img.shields.io/codeclimate/maintainability/fabiocaccamo/python-codicefiscale?logo=code-climate)](https://codeclimate.com/github/fabiocaccamo/python-codicefiscale/)
 [![](https://img.shields.io/badge/code%20style-black-000000.svg?logo=python&logoColor=black)](https://github.com/psf/black)
 [![](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)