[FIX]tracker: do not look for voting if tracker does not use voting-> save one query per items
[FIX]tracker: do not look for voting if tracker does not use voting-> save one query per items

git-svn-id: 08a866106b41c57cec985b5deddde5835bf030d4@18849 b456876b-0849-0410-b77d-98878d47e9d5

tikiorg/tiki,changi67/tiki,oregional/tiki,oregional/tiki,changi67/tiki,changi67/tiki,oregional/tiki,tikiorg/tiki,changi67/tiki,tikiorg/tiki,oregional/tiki,tikiorg/tiki,changi67/tiki