Remove IRC link

We mainly use matrix now

.github/ISSUE_TEMPLATE/config.yml

@@ -3,12 +3,9 @@ contact_links:
   - name: 📱 Mobile Application bug/feature request
     url: https://framagit.org/framasoft/peertube/mobile-application/-/issues
     about: Use the mobile application repository to report bugs or request new features
-  - name: 🤷💻🤦 Question/Forum
+  - name: 🤷 Question/Forum
     url: https://framacolibri.org/c/peertube
     about: You can ask and answer other questions here
   - name: 💬 Matrix
     url: https://matrix.to/#/#peertube:matrix.org
     about: Chat with us via Matrix for quick Q/A here
-  - name: 💬 IRC
-    url: https://web.libera.chat/#peertube
-    about: Chat with us via IRC for quick Q/A here