Bug 31519: Move preference fetching directly to be done in the template

Bug 31519: Move preference fetching directly to be done in the template

Since we are not in a loop or using this multiple times it's simple to
do it this way, helps with changing the template code in the future
too since if we want to remove this syspref variable we know it is
only used in this one particular place.

To test:
 1) Grep for reserve_in_future and make sure there are no matches
    after applying this patch

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>