Removes reference to Sysl Slack channel
The Sysl Slack channel is no more.
@@ -10,10 +10,6 @@ On this page we've listed some Sysl-related communities that you can be a part o
Stack Overflow is a popular forum to ask code-level questions or if you're stuck with a specific error. Read through the [existing questions](https://stackoverflow.com/questions/tagged/sysl) tagged with `sysl` or [ask your own](https://stackoverflow.com/questions/ask?tags=sysl)!
-## Slack
-
-[The Sysl Slack channel](https://anzoss.slack.com/messages/sysl/) is a great place for discussion about best practices and the future of Sysl. If you have specific questions about code, Stack Overflow is usually a better fit.
-
## GitHub
[GitHub repository](https://github.com/anz-bank/sysl) hosts all the project and issue tracking, plus of course code.
