Merge pull request #13651 from bdach/remove-zh-hk

Remove Traditional Chinese (HK) language option due to no actual existing translations

osu.Game/Localisation/Language.cs

@@ -103,8 +103,11 @@ namespace osu.Game.Localisation
         [Description(@"简体中文")]
         zh,
 
-        [Description(@"繁體中文（香港）")]
-        zh_hk,
+        // Traditional Chinese (Hong Kong) is listed in web sources but has no associated localisations,
+        // and was wrongly falling back to Simplified Chinese.
+        // Can be revisited if localisations ever arrive.
+        // [Description(@"繁體中文（香港）")]
+        // zh_hk,
 
         [Description(@"繁體中文（台灣）")]
         zh_tw