doc: remove not working link
@@ -324,7 +324,7 @@ After a successful workshop with the LCDproc's maintainer, the next Workshop wil
We will use the opportunity of [Akademy](https://akademy.kde.org/2018) being in Vienna.
We already got positive feedback from kconfig maintainers (David Faure and Aleix Pol).
-If you are interested, you can [sign up](https://dudle.inf.tu-dresden.de/config_workshop_akademy/).
+If you are interested, you can sign up.
We are looking forward to an informative, interactive and interesting workshop!
## Outlook
