Deactivating the track

[ErikSchierboom]

We'll be deactivating the track as Babashka is a Clojure interpreter, not a different languages.
The syntactic differences between Clojure and Babashka basically non-existent, and we therefore don't consider it to merit its own track.
We feel that deactivating this track is less confusing to students and can help focus efforts on the Clojure track.

Thanks to everyone who helped build this track!

CC @kytrinyx Could you archive this repo?