Remove altcoin Network implementations

src/Network/NetworkFactory.php

@@ -32,76 +32,4 @@ public static function bitcoinRegtest(): NetworkInterface
     {
         return new Networks\BitcoinRegtest();
     }
-
-    /**
-     * @return NetworkInterface
-     */
-    public static function litecoin(): NetworkInterface
-    {
-        return new Networks\Litecoin();
-    }
-
-    /**
-     * @return Networks\LitecoinTestnet
-     */
-    public static function litecoinTestnet(): NetworkInterface
-    {
-        return new Networks\LitecoinTestnet();
-    }
-
-    /**
-     * @return Networks\Viacoin
-     */
-    public static function viacoin(): NetworkInterface
-    {
-        return new Networks\Viacoin();
-    }
-
-    /**
-     * @return Networks\ViacoinTestnet
-     */
-    public static function viacoinTestnet(): NetworkInterface
-    {
-        return new Networks\ViacoinTestnet();
-    }
-
-    /**
-     * @return Networks\Dogecoin
-     */
-    public static function dogecoin(): NetworkInterface
-    {
-        return new Networks\Dogecoin();
-    }
-
-    /**
-     * @return Networks\DogecoinTestnet
-     */
-    public static function dogecoinTestnet(): NetworkInterface
-    {
-        return new Networks\DogecoinTestnet();
-    }
-
-    /**
-     * @return Networks\Dash
-     */
-    public static function dash(): NetworkInterface
-    {
-        return new Networks\Dash();
-    }
-
-    /**
-     * @return Networks\DashTestnet
-     */
-    public static function dashTestnet(): NetworkInterface
-    {
-        return new Networks\DashTestnet();
-    }
-
-    /**
-     * @return NetworkInterface
-     */
-    public static function zcash()
-    {
-        return new Networks\Zcash();
-    }
 }