remove hpcugent twitter link

Author: wdpypere

config/templates/hpc.template

@@ -171,8 +171,6 @@ extra:
   OS: {{ os }}
 {% if site == 'Gent' %}
   social:
-    - icon: fontawesome/brands/twitter
-      link: https://twitter.com/HPCUGent
     - icon: fontawesome/brands/youtube
       link: https://www.youtube.com/@HPCUGent
 {% endif %}