[REM] spreadsheet: removing ads from template

This commit removes 'Try Odoo' ad from the spreadsheet template which is
visible when spreadsheet is shared with public.

Task-3347908

closes odoo/odoo#124779

Signed-off-by: Rémi Rahir (rar) <rar@odoo.com>

addons/spreadsheet/views/public_readonly_spreadsheet_templates.xml

@@ -26,13 +26,6 @@
                         <t t-set="_item_class" t-valuef="nav-item d-table-cell text-center"/>
                         <t t-set="_link_class" t-valuef="nav-link fw-bold"/>
                     </t>
-                    <span class="d-table-cell text-center border-start" groups="base.group_public">
-                        <a href="https://www.odoo.com/trial?selected_app=documents&amp;utm_source=db&amp;utm_medium=spreadsheet"
-                            class="text-black nav-link" role="button" target="_blank">
-                            <img width="24" src="/mail/static/src/img/odoo_o.png"/>
-                            Try Odoo
-                        </a>
-                    </span>
                 </div>
             </header>
             <main id="spreadsheet-mount-anchor" class="flex-fill"/>