Cleanup ad domains (#2066)

* Remove domains that should not be blocked from -ads

Blocking them will cause some problems.

* Remove unnecessary ad domains

They are subdomains of other ad domains

* Remove facebook domains that should not be blocked

https://github.com/privacy-protection-tools/anti-AD/issues/892

https://github.com/notracking/hosts-blocklists/issues/157

data/google-ads

@@ -14,7 +14,6 @@ adwords.com @ads
 adwordsexpress.com @ads
 app-measurement-cn.com @ads
 app-measurement.com @ads
-clickserver.googleads.com @ads
 doubleclick-cn.net @ads
 doubleclick.cn @ads
 doubleclick.com @ads