chore: remove IRC badge

README.md

@@ -1,5 +1,5 @@
 # ![Kosmorro](https://github.com/Kosmorro/logos/raw/main/kosmorro/kosmorro-artwork.jpg)
-[![Version on PyPI](https://img.shields.io/pypi/v/kosmorro)](https://pypi.org/project/kosmorro) [![Packaging status](https://repology.org/badge/tiny-repos/kosmorro.svg)](https://repology.org/project/kosmorro/versions) [![Help translating Kosmorro!](https://hosted.weblate.org/widgets/kosmorro/-/cli/svg-badge.svg)](https://hosted.weblate.org/engage/kosmorro/) [![IRC: #kosmorro on Libera.Chat](https://img.shields.io/badge/Libera.Chat-%23kosmorro-blueviolet)](https://web.libera.chat/?nick=Astronaut?#kosmorro)
+[![Version on PyPI](https://img.shields.io/pypi/v/kosmorro)](https://pypi.org/project/kosmorro) [![Packaging status](https://repology.org/badge/tiny-repos/kosmorro.svg)](https://repology.org/project/kosmorro/versions) [![Help translating Kosmorro!](https://hosted.weblate.org/widgets/kosmorro/-/cli/svg-badge.svg)](https://hosted.weblate.org/engage/kosmorro/)
 
 Kosmorro is a program that calculates your astronomical ephemerides.