remove unnecessary code

src/client/js/legacy/crowi.js

@@ -156,36 +156,12 @@ Crowi.highlightSelectedSection = function(hash) {
 
 $(() => {
   const pageId = $('#content-main').data('page-id');
-  // const revisionId = $('#content-main').data('page-revision-id');
-  // const revisionCreatedAt = $('#content-main').data('page-revision-created');
-  // const currentUser = $('#content-main').data('current-user');
   const isSeen = $('#content-main').data('page-is-seen');
 
   $('[data-toggle="popover"]').popover();
   $('[data-toggle="tooltip"]').tooltip();
   $('[data-tooltip-stay]').tooltip('show');
 
-  $('#toggle-crowi-sidebar').click((e) => {
-    const $body = $('body');
-    if ($body.hasClass('aside-hidden')) {
-      $body.removeClass('aside-hidden');
-      $.cookie('aside-hidden', 0, { expires: 30, path: '/' });
-    }
-    else {
-      $body.addClass('aside-hidden');
-      $.cookie('aside-hidden', 1, { expires: 30, path: '/' });
-    }
-    return false;
-  });
-
-  if ($.cookie('aside-hidden') === 1) {
-    $('body').addClass('aside-hidden');
-  }
-
-  $('.copy-link').on('click', function() {
-    $(this).select();
-  });
-
   if (pageId) {
 
     if (!isSeen) {