Bug 31782: Remove js/autocomplete/patrons.js

Bug 31782: Remove js/autocomplete/patrons.js

On 30578 we replace circ/ysearch.pl with a call to the /api/v1/patrons
route. A new patron_autocomplete JS function has been written
(js/patron-autocomplete.js) for that purpose.

However 3 occurrences were using an existing patron_autocomplete
function, and 30578 didn't take care of adjusting correctly the call to
the REST API route.

On this patchset I am suggesting to copy/paste the JS functions defined
in js/autocomplete/patrons.js, because we are very close of the 22.11
release. But ideally we should improve js/patron-autocomplete.js to add
a new 'on-select-add-to' option that will take care of add/remove/hide
behaviour. IMO that must be done on a separate bug, and after 22.11 is
released (to not need to retest the other occurrences of the patron
autocomplete)

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>