Bug 13892: Make ysearch.pl not using C4::Members::Search

Bug 13892: Make ysearch.pl not using C4::Members::Search

To get rid of SQLHelper, we should not use this C4::Members::Search anymore.

Test plan:
0/ Enable the CircAutocompl pref
1/ Go on the circulation home page, or the reserve page
2/ Search for a patron and wait for the autocompletion box
3/ Confirm there is no regression

Works as expected.
Signed-off-by: Marc Veron <veron@veron.ch>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>