Remove DOMContentLoaded Eventlisteners

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

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

-document.addEventListener('DOMContentLoaded', () => {
-  const licenseFile = document.querySelector('.license-file');
-  const licenseKey = document.querySelector('.license-key');
-  const acceptEULACheckBox = document.querySelector('#accept_eula');
-  const uploadLicenseBtn = document.querySelector('#js-upload-license');
-  const licenseType = document.querySelectorAll('input[name="license_type"]');
+const licenseFile = document.querySelector('.license-file');
+const licenseKey = document.querySelector('.license-key');
+const acceptEULACheckBox = document.querySelector('#accept_eula');
+const uploadLicenseBtn = document.querySelector('#js-upload-license');
+const licenseType = document.querySelectorAll('input[name="license_type"]');
 
-  const showLicenseType = () => {
-    const checkedFile =
-      document.querySelector('input[name="license_type"]:checked').value === 'file';
+const showLicenseType = () => {
+  const checkedFile = document.querySelector('input[name="license_type"]:checked').value === 'file';
 
-    licenseFile.classList.toggle('hidden', !checkedFile);
-    licenseKey.classList.toggle('hidden', checkedFile);
-  };
+  licenseFile.classList.toggle('hidden', !checkedFile);
+  licenseKey.classList.toggle('hidden', checkedFile);
+};
 
-  const toggleUploadLicenseButton = () => {
-    uploadLicenseBtn.toggleAttribute('disabled', !acceptEULACheckBox.checked);
-  };
+const toggleUploadLicenseButton = () => {
+  uploadLicenseBtn.toggleAttribute('disabled', !acceptEULACheckBox.checked);
+};
 
-  licenseType.forEach(el => el.addEventListener('change', showLicenseType));
-  acceptEULACheckBox.addEventListener('change', toggleUploadLicenseButton);
-  showLicenseType();
-});
+licenseType.forEach(el => el.addEventListener('change', showLicenseType));
+acceptEULACheckBox.addEventListener('change', toggleUploadLicenseButton);
+showLicenseType();

ee/app/assets/javascripts/pages/projects/analytics/code_reviews/index/index.js

 import initCodeReviewAnalyticsApp from 'ee/analytics/code_review_analytics/code_review_analytics_bundle';
 
-document.addEventListener('DOMContentLoaded', () => {
-  initCodeReviewAnalyticsApp();
-});
+initCodeReviewAnalyticsApp();

ee/app/assets/javascripts/pages/projects/analytics/issues_analytics/index.js

 import initIssuesAnalytics from 'ee/issues_analytics';
 
-document.addEventListener('DOMContentLoaded', () => {
-  initIssuesAnalytics();
-});
+initIssuesAnalytics();

ee/app/assets/javascripts/pages/projects/analytics/merge_request_analytics/index.js

 import initMergeRequestAnalyticsApp from 'ee/analytics/merge_request_analytics';
 
-document.addEventListener('DOMContentLoaded', initMergeRequestAnalyticsApp);
+initMergeRequestAnalyticsApp();

ee/app/assets/javascripts/pages/projects/licenses/index/index.js

 import initLicenseComplianceApp from 'ee/license_compliance';
 
-document.addEventListener('DOMContentLoaded', initLicenseComplianceApp);
+initLicenseComplianceApp();

ee/app/assets/javascripts/pages/projects/merge_conflicts/index.js

 import initSidebarBundle from '~/sidebar/sidebar_bundle';
 import initMergeConflicts from '~/merge_conflicts/merge_conflicts_bundle';
 
-document.addEventListener('DOMContentLoaded', () => {
-  initSidebarBundle();
-  initMergeConflicts();
-});
+initSidebarBundle();
+initMergeConflicts();