Bug 11737: (follow-up) remove extra fnReloadAjax.js

Bug 11737: (follow-up) remove extra fnReloadAjax.js

the file dataTables.fnReloadAjax.js exists in the interface and
themelang directories.
It is only used in quotes.tt.
So the unused one can be removed.

test plan:
git grep fnReloadAjax.js
should return only 1 ref (quotes.tt)

Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
(cherry picked from commit e0d7d998c2025fdb8ed1caf4303f754e05164c97)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>