LR6 and the mobile nagging

[Box Brownie]

Hi All

I have LR6 not CC and though not everytime, when I launch LR6 I get a dialogue box asking me if I want to sync mobile,  It would be good if this never came up

Also just realised in case this is covered, I still have to install the June 2015 update (188MB) and also ACR 9.1

TIA for the insight