Merge branch 'jnnkl-remove-event-listener-branches' into 'master'

Remove obsolete DOMContentLoadedEventListener

See merge request gitlab-org/gitlab!54959

app/assets/javascripts/pages/projects/branches/new/index.js

 import $ from 'jquery';
 import NewBranchForm from '~/new_branch_form';
 
-document.addEventListener(
-  'DOMContentLoaded',
-  () =>
-    new NewBranchForm(
-      $('.js-create-branch-form'),
-      JSON.parse(document.getElementById('availableRefs').innerHTML),
-    ),
+// eslint-disable-next-line no-new
+new NewBranchForm(
+  $('.js-create-branch-form'),
+  JSON.parse(document.getElementById('availableRefs').innerHTML),
 );