[IMP] theme_*: remove save step from tour definition

It is now automatic as the last step of the homepage tours.

Part of https://github.com/odoo/design-themes/pull/2
task-2491890

theme_vehicle/static/src/js/tour.js

@@ -53,7 +53,5 @@ wTourUtils.registerThemeHomepageTour("vehicle_tour", [
     wTourUtils.clickOnSnippet(snippets[6], 'top'),
     wTourUtils.changeOption('BackgroundShape', 'we-toggler', _t('Background Shape')),
     wTourUtils.selectNested('we-select-page', 'BackgroundShape', ':not(.o_we_pager_controls)', _t('Background Shape')),
-
-    wTourUtils.clickOnSave(),
 ]);
 });