How can I remove “SOCIAL NETWORKS” from the contacts list shown in Windows Live Mail

I have two headings in the Contacts list in Windows Live Mail. One is CONTACTS and the other is Social Networks. The only social network I access is LinkedIn and that icon appears next to all of the contacts in the SOCIAL NETWORK list. The contacts in the CONTACT list  that are not in the SOCIAL NETWORK list have "Edit Contact" displayed and active on each contacts information page. Contacts in the SPOCIAL NETWORK list do not have this information displayed or even "delete contact" displayed. My problem is that I can not edit contact info or even delete a contact  that is included in the SOCIAL NETWORK list. I have tried to find a way to remove the SOCIAL NETWORK list but have not been successful yet. Does anyone know how I can get out of the situation. I would like to avoid Outlook if possible. I am using Windows Live Mail 2012 and have been using Windows Live Mail versions since they first came out.