Remove duplicate code

Cut-n-paste somehow into the same class

plugins/trezor/plugin.py

@@ -337,21 +337,3 @@ class TrezorCompatiblePlugin(BasePlugin):
     @staticmethod
     def is_valid_seed(seed):
         return True
-
-    def on_restore_wallet(self, wallet, wizard):
-        assert isinstance(wallet, self.wallet_class)
-
-        msg = _("Enter the seed for your %s wallet:" % self.device)
-        seed = wizard.request_seed(msg, is_valid = self.is_valid_seed)
-
-        # Restored wallets are not hardware wallets
-        wallet_class = self.wallet_class.restore_wallet_class
-        wallet.storage.put('wallet_type', wallet_class.wallet_type)
-        wallet = wallet_class(wallet.storage)
-
-        passphrase = wizard.request_passphrase(self.device, restore=True)
-        password = wizard.request_password()
-        wallet.add_seed(seed, password)
-        wallet.add_cosigner_seed(seed, 'x/', password, passphrase)
-        wallet.create_main_account(password)
-        return wallet