Yes, the SSDP discovery occurs every 5 minutes to keep the device information in sync (starting at
this line it checks to see if you already have the device in your list and if it's already setup as a child device and the data doesn't match, it synchronizes it).
If it's just console logging you don't like, you could comment out the log.debug statements as you see fit.
If it's the actual SSDP discovery you don't like and you have fixed IP addresses on all your Wink Relays, you could always comment out the line that schedules the ssdpDiscovery.
