I tired the following method and the notification seems to go away now. U can give it a go too...=)
1) Enter on dialer 277634#*#
2) Go to Field test
3) Wifi Test.
4) OTA Setting.
5) Press Disable
Update: originally I mentioned my model didnt work but it was my mistake, I was trying it on the contacts+ (my sms app) dialer when i should be using stock dialer. I managed to go through all those 5 steps already

