Revert "Sweep keys: don't default to hidden address"

This reverts commit 605cc47a3d.

lib/wallet.py

@@ -666,13 +666,10 @@ class Abstract_Wallet(PrintError):
         amount = max(0, sendable - fee)
         return amount, fee
 
-    def default_account_id(self):
-        return self.accounts.keys()[0]
-
     def get_account_addresses(self, acc_id, include_change=True):
         if acc_id is None:
-            acc_id = self.default_account_id()
-        if acc_id in self.accounts:
+            addr_list = self.addresses(include_change)
+        elif acc_id in self.accounts:
             acc = self.accounts[acc_id]
             addr_list = acc.get_addresses(0)
             if include_change:
@@ -1693,11 +1690,6 @@ class BIP32_HD_Wallet(BIP32_RD_Wallet):
                 set(['%d' % n for n in range(len(self.accounts))]))
         return len(self.accounts)
 
-    def default_account_id(self):
-        visible_acc_ids = [acc_id for acc_id in self.accounts.keys()
-                            if self.show_account(acc_id)]
-        return visible_acc_ids[0]
-
     def show_account(self, account_id):
         return self.account_is_used(account_id) or account_id in self.labels