question : non-friends @friends of friends birthday in people hub>>how to remove?

[Amirhamz83]

Hello guys. cant find any thread bout this so here it is. proud owner of Lumia 720.
As the title, i kept seeing posts about birthdays of these non-friends or friends of friends/ posts asking friends to send birthday cards to their friends(def. not mine).. and i rather not. C
ant find how to edit it through facebook setting or winphone setting.
Any helps is really appreciated.

 

[stmav]

Is it just birthdays, or does it also have the normal stuff from your facebook news feed?

 

[fwaits]

You have non-FB friends birthdays in your calendar or you see these on the FB app feed? Not clear where the "notices" are coming from.