Fixed Bug 8081

disabling rental items with zones would cause such rental items to be deleted when the item_restricted_consumption_type setting was enabled, this has been fixed in this commit.
Special Thanks to Tepoo.
http://hercules.ws/board/tracker/issue-8081-map-zone-dbconf-item-dissabled-issues/

Signed-off-by: shennetsind <ind@henn.et>