kivy: remove unnecessary friction in _enable_lightning

electrum/gui/kivy/main_window.py

@@ -1436,11 +1436,8 @@ class ElectrumWindow(App, Logger):
     def _enable_lightning(self, b):
         if not b:
             return
-        self.protected(_("Create lightning keys?"), self.__enable_lightning, ())
-
-    def __enable_lightning(self, password):
         wallet_path = self.get_wallet_path()
-        self.wallet.init_lightning(password=password)
+        self.wallet.init_lightning(password=self.password)
         self.show_info(_('Lightning keys have been initialized.'))
         self.stop_wallet()
         self.load_wallet_by_name(wallet_path)