[0.85] #4385: all Group_User actions concerning CommonDBRelation


git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.85-work@21545 35612d4c-9d10-0410-837c-bf9dd1be60d7
[0.85] #4385: remove code obsoleted by previous revision


git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.85-work@21546 35612d4c-9d10-0410-837c-bf9dd1be60d7