Remove DOMContentLoaded Eventlisteners

Removing DOMContentLoaded Eventlisteners from
index files since the scripts
are embedded using the defer tag.

ee/app/assets/javascripts/pages/admin/groups/edit/index.js

@@ -2,8 +2,6 @@ import initLDAPGroupsSelect from 'ee/ldap_groups_select';
 import initLDAPGroupLinks from 'ee/groups/ldap_group_links';
 import { pipelineMinutes } from '../../users/pipeline_minutes';
 
-document.addEventListener('DOMContentLoaded', () => {
-  initLDAPGroupsSelect();
-  initLDAPGroupLinks();
-  pipelineMinutes();
-});
+initLDAPGroupsSelect();
+initLDAPGroupLinks();
+pipelineMinutes();

ee/app/assets/javascripts/pages/admin/groups/new/index.js

 import '~/pages/admin/groups/new/index';
 import initLDAPGroupLinks from 'ee/groups/ldap_group_links';
 
-document.addEventListener('DOMContentLoaded', initLDAPGroupLinks);
+initLDAPGroupLinks();

ee/app/assets/javascripts/pages/admin/push_rules/index.js

 import initSettingsPanels from '~/settings_panels';
 
-document.addEventListener('DOMContentLoaded', () => {
-  initSettingsPanels();
-});
+initSettingsPanels();

ee/app/assets/javascripts/pages/admin/users/edit/index.js

 import { pipelineMinutes } from '../pipeline_minutes';
 
-document.addEventListener('DOMContentLoaded', () => {
-  pipelineMinutes();
-});
+pipelineMinutes();

ee/app/assets/javascripts/pages/projects/merge_requests/creations/diffs/index.js

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

ee/app/assets/javascripts/pages/projects/requirements_management/requirements/index.js

 import initRequirementsApp from 'ee/requirements/requirements_bundle';
 
-document.addEventListener('DOMContentLoaded', () => {
-  initRequirementsApp();
-});
+initRequirementsApp();