fix pylint R0205 (useless-object-inheritance)

lnbits/bolt11.py

@@ -20,7 +20,7 @@ class Route(NamedTuple):
     cltv: int
 
 
-class Invoice(object):
+class Invoice:
     payment_hash: str
     amount_msat: int = 0
     description: Optional[str] = None
@@ -245,7 +245,7 @@ def lnencode(addr, privkey):
     return bech32_encode(hrp, bitarray_to_u5(data))
 
 
-class LnAddr(object):
+class LnAddr:
     def __init__(
         self, paymenthash=None, amount=None, currency="bc", tags=None, date=None
     ):

lnbits/wallets/macaroon/macaroon.py

@@ -33,7 +33,7 @@ def load_macaroon(macaroon: str) -> str:
     return macaroon
 
 
-class AESCipher(object):
+class AESCipher:
     """This class is compatible with crypto-js/aes.js
 
     Encrypt and decrypt in Javascript using: