Clean CDN hosts

This change addresses some general housecleaning for CDN hosts:

* Removing all hosts that do not resolve
* Removing any rogue whitespaces in CDN `.txt` files
* Removing hirez CDN (as the only host could not be resolved)

wargaming.net.txt

@@ -1,20 +1,16 @@
-dl1.wargaming.net
 dl2.wargaming.net
 wg.gcdn.co
-wgusst-na.wargaming.net
-wgusst-eu.wargaming.net
-update-v4r4h10x.worldofwarships.com
 wgus-wotasia.wargaming.net
 dl-wot-ak.wargaming.net
 dl-wot-gc.wargaming.net
-dl-wot-se.wargaming.net 
+dl-wot-se.wargaming.net
 dl-wot-cdx.wargaming.net
 dl-wows-ak.wargaming.net
 dl-wows-gc.wargaming.net
-dl-wows-se.wargaming.net 
+dl-wows-se.wargaming.net
 dl-wows-cdx.wargaming.net
 dl-wowp-ak.wargaming.net
 dl-wowp-gc.wargaming.net
-dl-wowp-se.wargaming.net 
+dl-wowp-se.wargaming.net
 dl-wowp-cdx.wargaming.net
 wgus-woteu.wargaming.net