fix flake errors after #504

jmclient/jmclient/taker_utils.py

@@ -7,7 +7,6 @@ import time
 import numbers
 from jmbase import get_log, jmprint
 from .configure import jm_single, validate_address
-from .jsonrpc import JsonRpcError
 from .schedule import human_readable_schedule_entry, tweak_tumble_schedule,\
     schedule_to_text
 from .wallet import BaseWallet, estimate_tx_fee, compute_tx_locktime

jmclient/jmclient/wallet_utils.py

@@ -10,7 +10,7 @@ from numbers import Integral
 from collections import Counter
 from itertools import islice
 from jmclient import (get_network, WALLET_IMPLEMENTATIONS, Storage, podle,
-    jm_single, BitcoinCoreInterface, JsonRpcError, WalletError,
+    jm_single, BitcoinCoreInterface, WalletError,
     VolatileStorage, StoragePasswordError, is_segwit_mode, SegwitLegacyWallet,
     LegacyWallet, SegwitWallet, is_native_segwit_mode, load_program_config,
     add_base_options, check_regtest)