remove no longer used format_toc function

Author: haarg

root/static/js/cpan.js

@@ -173,50 +173,6 @@ for (const favButton of document.querySelectorAll('.breadcrumbs .favorite')) {
 
 $('.dropdown-toggle').dropdown();
 
-function format_toc(toc) {
-    if (storage.getItem('hideTOC') == 1) {
-        toc.classList.add("hide-toc");
-    }
-
-    const toc_header = toc.querySelector('.toc-header');
-    const toc_body = toc.querySelector('ul');
-
-    toc_header.insertAdjacentHTML('beforeend',
-        ' [ <button class="btn-link toggle-toc"><span class="toggle-show">show</span><span class="toggle-hide">hide</span></button> ]'
-    );
-    toc_header.querySelector('.toggle-toc').addEventListener('click', e => {
-        e.preventDefault();
-        const currentVisible = !toc.classList.contains('hide-toc');
-        storage.setItem('hideTOC', currentVisible ? 1 : 0);
-
-        const fullHeight = toc_body.scrollHeight;
-
-        if (currentVisible) {
-            const trans = toc_body.style.transition;
-            toc_body.style.transition = '';
-
-            requestAnimationFrame(() => {
-                toc_body.style.height = fullHeight + 'px';
-                toc_body.style.transition = trans;
-                toc.classList.toggle('hide-toc');
-
-                requestAnimationFrame(() => {
-                    toc_body.style.height = null;
-                });
-            });
-        } else {
-            const finish = e => {
-                toc_body.removeEventListener('transitionend', finish);
-                toc_body.style.height = null;
-            };
-
-            toc_body.addEventListener('transitionend', finish);
-            toc_body.style.height = fullHeight + 'px';
-            toc.classList.toggle('hide-toc');
-        }
-    });
-}
-
 const toc = document.querySelector(".content .toc")
 if (toc) {
     formatTOC(toc);