Boonex sites have been overloaded and slow lately because the launch of D7 and that is most likely the reason why your links appeared..
Everytime you login to your admin panel there is a callback to Boonex's server to check your license.
Earlier I had this problem alot but afterwards everytime before I am going to login to my admin panel I visit first www.boonex.com to see if the site is smooth if it is okey then I go back to my own admin panel and login. This problem exists only on Dolphin versions 6 and earlier.
Back to your problem how to remove the links..
You can go to advanced settings on admin panel and copy the license then remove the license and click save then open it up again and paste the license again then it will most likely work.. Otherwise it will take hours before the links ill disapear(atleast on 6.1.4, dunno 6.1.6)
Sometimes if it did not work I used to enter another license that I had in there and then entered back the main license..
If you have a free license you can enter it in there and save, then enter the paid license