Remove DOMContentLoaded Eventlisteners

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

ee/app/assets/javascripts/pages/admin/geo/designs/index.js

 import initGeoReplicable from 'ee/geo_replicable';
 
-document.addEventListener('DOMContentLoaded', initGeoReplicable);
+initGeoReplicable();

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

@@ -2,10 +2,8 @@ import initVueAlerts from '~/vue_alerts';
 import initConfirmModal from '~/confirm_modal';
 import showToast from '~/vue_shared/plugins/global_toast';
 
-document.addEventListener('DOMContentLoaded', () => {
-  initVueAlerts();
-  initConfirmModal();
+initVueAlerts();
+initConfirmModal();
 
-  const toasts = document.querySelectorAll('.js-toast-message');
-  toasts.forEach(toast => showToast(toast.dataset.message));
-});
+const toasts = document.querySelectorAll('.js-toast-message');
+toasts.forEach(toast => showToast(toast.dataset.message));

ee/app/assets/javascripts/pages/admin/geo/nodes/edit/index.js

 import initGeoNodeForm from 'ee/geo_node_form';
 
-document.addEventListener('DOMContentLoaded', initGeoNodeForm);
+initGeoNodeForm();

ee/app/assets/javascripts/pages/admin/geo/nodes/index.js

 import initGeoNodes from 'ee/geo_nodes';
 import PersistentUserCallout from '~/persistent_user_callout';
 
-document.addEventListener('DOMContentLoaded', initGeoNodes);
-document.addEventListener('DOMContentLoaded', () => {
-  const callout = document.querySelector('.user-callout');
-  PersistentUserCallout.factory(callout);
-});
+initGeoNodes();
+const callout = document.querySelector('.user-callout');
+PersistentUserCallout.factory(callout);

ee/app/assets/javascripts/pages/admin/geo/nodes/new/index.js

 import initGeoNodeForm from 'ee/geo_node_form';
 
-document.addEventListener('DOMContentLoaded', initGeoNodeForm);
+initGeoNodeForm();

ee/app/assets/javascripts/pages/admin/geo/replicables/index.js

 import initGeoReplicable from 'ee/geo_replicable';
 
-document.addEventListener('DOMContentLoaded', initGeoReplicable);
+initGeoReplicable();