public boolean removeListener(ZooKeeperConnectionListener listener) {
		return this.listeners.remove(listener);
	}
Remove a {@link ZooKeeperConnectionListener}.

@param listener the listener to remove
@return true if the listener was removed or false if it was never registered
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/zookeeper/ZooKeeperConnection.java