Remove Monkey network, test was failing.

See https://github.com/iancoleman/bip39/pull/335#issuecomment-500638649

src/js/bitcoinjs-extensions.js

@@ -1615,14 +1615,3 @@ bitcoinjs.bitcoin.networks.deeponion = {
     scriptHash: 0x4E,
     wif: 0x9F,
 };
-
-bitcoinjs.bitcoin.networks.monkey = {
-    messagePrefix: 'x18DarkNet Signed Message:\n',
-    bip32: {
-      public: 0x0488B21E,
-      private: 0x0488ADE4,
-    },
-    pubKeyHash: 0x7F,
-    scriptHash: 0xC4,
-    wif: 0x3F,
-};

src/js/index.js

@@ -2317,13 +2317,6 @@
                 setHdCoin(22);
             },
         },
-        {
-            name: "MONK - Monkey Project",
-            onSelect: function() {
-                network = bitcoinjs.bitcoin.networks.monkey;
-                setHdCoin(214);
-            },
-        },
         {
             name: "MUSIC - Musicoin",
             segwitAvailable: false,