def on_cluster_remove(self, name):
discovery_name = self.configurables[Cluster][name].discovery<EOL>if discovery_name in self.configurables[Discovery]:<EOL><INDENT>self.configurables[Discovery][discovery_name].stop_watching(<EOL>self.configurables[Cluster][name]<EOL>)<EOL>self.kill_thread(name)<EOL><DEDENT>self.sync_balancer_files()<EOL>
Stops the cluster's associated discovery method from watching for
changes to the cluster's nodes.