tpl/tplimpl: Update Google Analytics template and config

Google Analytics 4 (GA4) replaced Google Universal Analytics (UA)
effective 1 July 2023.

See https://support.google.com/analytics/answer/11583528.

Changes:

- Update tpl/tplimpl/embedded/templates/google_analytics.html
- Remove tpl/tplimpl/embedded/templates/google_analytics_async.html
- Remove extraneous config settings

Closes #11802
Closes #10093

docs/data/docs.yaml

@@ -1557,10 +1557,8 @@ config:
     disqus:
       disable: false
     googleAnalytics:
-      anonymizeIP: false
       disable: false
       respectDoNotTrack: false
-      useSessionStorage: false
     instagram:
       disable: false
       simple: false