[FIX] Remove old pref of replaced feature

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@47440 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Always show user info mouseover if friends feature is on, otherwise missing critical UI

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@47441 b456876b-0849-0410-b77d-98878d47e9d5