Clean up (#3015)

* tld-cn: add more cn TLDs

* mastercard: remove redundant priceless.com

it appears twice

* thescoregroup: remove redundant juliamiles.com

it appears twice

* visa: remove redundant visainfinite.ca

it appears twice

* update category-porn

to lowercase, include pornhub, dedup, sort

* clean up white spaces

data/category-number-verification-cn

@@ -1,4 +1,4 @@
-# SDKs provided by Chinese ISP are used by apps to determine the phone number through celluar network. 
+# SDKs provided by Chinese ISP are used by apps to determine the phone number through celluar network.
 
 # China Telecom
 full:id6.me