remove deprecated setting

docker/compose/mozdef_meteor/files/settings.js

@@ -12,7 +12,6 @@ mozdef = {
   port: "80",
   rootAPI: "http://rest:8081",
   kibanaURL: "http://localhost:9090/app/kibana#",
-  enableBlockIP: false,
   enableClientAccountCreation: true,
   authenticationType: "meteor-password"
 }