[Analytics] Removes Looker Studio integration (#24514)

* Removes Looker Studio integration

* Removes images

Author: angelampcosta

public/__redirects

@@ -203,6 +203,7 @@
 /analytics/graphql-api/tutorials/export-graphql-to-csv/ /analytics/graphql-api/tutorials/ 301
 /analytics/analytics-integrations/google-cloud/ /analytics/analytics-integrations/ 301
 /analytics/dashboards/ /log-explorer/custom-dashboards/ 301
+/analytics/analytics-integrations/looker/ /analytics/analytics-integrations/ 301
 
 # email-security
 /email-security/reporting/search/detection-search/ /email-security/reporting/search/ 301