remove battle.net authenticator for now (#6)

(cherry picked from commit 1cbeb4e)

Author: codemasher

examples/battlenet.php

@@ -22,7 +22,6 @@ interface AuthenticatorInterface{
 	public const TOTP        = 'totp';
 	public const HOTP        = 'hotp';
 	public const STEAM_GUARD = 'steam';
-	public const BATTLE_NET  = 'battlenet';
 
 	public const ALGO_SHA1   = 'SHA1';
 	public const ALGO_SHA256 = 'SHA256';
@@ -32,7 +31,6 @@ interface AuthenticatorInterface{
 		self::HOTP        => HOTP::class,
 		self::TOTP        => TOTP::class,
 		self::STEAM_GUARD => SteamGuard::class,
-		self::BATTLE_NET  => BattleNet::class,
 	];
 
 	public const HASH_ALGOS = [