Bug 36224: Remove unused spsuggest from templates

Bug 36224: Remove unused spsuggest from templates

To test:
-APPLY PATCH
-Review the OPAC results and staff interface results pages.
-Nothing should change, it would be impossible to end up inside of the [% IF koha_spsuggest %] condition because there is nothing like that in the scripts!

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit e07c6d072977b9e52dc2153fd36f03601e161c1a)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>