updated battle-net-zh-cn (latest)

Casks/battle-net-zh-cn.rb

@@ -2,7 +2,6 @@ cask 'battle-net-zh-cn' do
   version :latest
   sha256 :no_check
 
-  # blizzard.com is the official download host per the vendor homepage
   url 'http://www.battlenet.com.cn/download/getInstaller?os=mac&installer=Battle.net-Setup-zhCN.zip'
   name 'Blizzard Battle.net'
   homepage 'http://www.battlenet.com.cn/zh/'