There are so many annoying things about being on LinkedIn. For example, you can’t un-invite someone to connect with them and it’s a huge pain in the butt! Luckily there is an easy way for those of us who want out: just go into My Requests (it’ll be under Connections) then select all pending invitations that you’d like to withdraw your invitation request from - click Revoke Selected Request once selected and voila! There will still plenty time left if change your mind before they get withdrawn.