test: remove unnecessary finalizepsbt rpc calls

test/functional/wallet_signer.py

@@ -169,8 +169,7 @@ class WalletSignerTest(BitcoinTestFramework):
         dest = self.nodes[0].getnewaddress(address_type='bech32')
         mock_psbt = mock_wallet.walletcreatefundedpsbt([], {dest:0.5}, 0, {'replaceable': True}, True)['psbt']
         mock_psbt_signed = mock_wallet.walletprocesspsbt(psbt=mock_psbt, sign=True, sighashtype="ALL", bip32derivs=True)
-        mock_psbt_final = mock_wallet.finalizepsbt(mock_psbt_signed["psbt"])
-        mock_tx = mock_psbt_final["hex"]
+        mock_tx = mock_psbt_signed["hex"]
         assert mock_wallet.testmempoolaccept([mock_tx])[0]["allowed"]
 
         # # Create a new wallet and populate with specific public keys, in order