chore(client): clean up GA (#40856)

client/src/analytics/gtag.js

@@ -1,29 +0,0 @@
-const isBrowser = typeof window !== 'undefined';
-
-if (isBrowser) {
-  window.dataLayer = window.dataLayer || [];
-}
-
-function gtag() {
-  if (isBrowser) {
-    window.dataLayer.push(arguments);
-  }
-}
-gtag('js', new Date());
-gtag('config', 'AW-795617839');
-
-export function gtagReportConversion(url) {
-  var callback = function() {
-    if (typeof url !== 'undefined' && isBrowser) {
-      window.location = url;
-    }
-  };
-  if (isBrowser) {
-    gtag('event', 'conversion', {
-      /* eslint-disable camelcase */
-      send_to: 'AW-795617839/AmfiCKHHs4gBEK_UsPsC',
-      event_callback: callback
-    });
-  }
-  return false;
-}

client/src/components/Header/components/Login.js

@@ -8,8 +8,6 @@ import { useTranslation } from 'react-i18next';
 import { isSignedInSelector } from '../../../redux';
 import { apiLocation, homeLocation } from '../../../../config/env.json';
 
-import { gtagReportConversion } from '../../../analytics/gtag';
-
 import './login.css';
 
 const mapStateToProps = createSelector(
@@ -34,7 +32,6 @@ function Login(props) {
       className={(block ? 'btn-cta-big btn-block' : '') + ' signup-btn btn-cta'}
       data-test-label={dataTestLabel}
       href={href}
-      onClick={() => gtagReportConversion()}
     >
       {children || t('buttons.sign-in')}
     </Button>