Remove outdated squawkers stuff

We don't really endorse maintaining this anymore, because we use bots
via the hubs client for this same work.

Author: mqp

.gitignore

@@ -1,8 +1,6 @@
 /target/
 **/*.rs.bk
 
-client/node_modules
-
 # dependencies and build output created by setup-and-run-janus.sh
 scripts/build
 client/server.key