Merge branch 'cngo-remove-DOMContentLoaded' into 'master'

Delete Pipeline Schedule DOMContentLoaded handlers

See merge request gitlab-org/gitlab!65679

app/assets/javascripts/pages/projects/pipeline_schedules/create/index.js

 import initForm from '../shared/init_form';
 
-document.addEventListener('DOMContentLoaded', initForm);
+initForm();

app/assets/javascripts/pages/projects/pipeline_schedules/edit/index.js

 import initForm from '../shared/init_form';
 
-document.addEventListener('DOMContentLoaded', initForm);
+initForm();

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

 import initForm from '../shared/init_form';
 
-document.addEventListener('DOMContentLoaded', initForm);
+initForm();

app/assets/javascripts/pages/projects/pipeline_schedules/update/index.js

 import initForm from '../shared/init_form';
 
-document.addEventListener('DOMContentLoaded', initForm);
+initForm();