Keep pre 7.1 tabbed component attributes

Author: AJ Griffiths

wagtail_footnotes/templates/wagtail_footnotes/admin/footnotes_modal.html

@@ -19,7 +19,7 @@ <h1 class="header-title w-header__title">{% translate "Choose a footnote" %}</h1
                     </div>
                 </header>
 
-                <div class="w-tabs" data-controller="w-tabs" data-action="popstate@window->w-tabs#select" data-w-tabs-use-location-value="true">
+                <div class="w-tabs" data-controller="w-tabs" data-tabs="" data-tabs-disable-url="">
                     <div class="w-tabs__wrapper"></div>
                     <div class="tab-content">
                         <div class="w-tabs__panel">