test: Implicitly sync after generate*, unless opted out

test/functional/wallet_send.py

@@ -448,7 +448,6 @@ class WalletSendTest(BitcoinTestFramework):
         res = self.nodes[0].sendrawtransaction(hex)
         self.generate(self.nodes[0], 1)
         assert_equal(self.nodes[0].gettransaction(txid)["confirmations"], 1)
-        self.sync_all()
 
         self.log.info("Lock unspents...")
         utxo1 = w0.listunspent()[0]