Replace links to TUD Indico instance
Currently, we have multiple events that are organized through the TUD Indico instance. Thus, the external link checking job fails. Two options to solve this:
- Disable the test for now
- Remove the registration links until further notice.
If we don't merge it before, all future deployments will fail, like !234 (merged). I favor the second option. Is there any problem if I remove the registration links?