multi: update RPC error import path

These errors are now defined in `btcwallet/chain` instead of
`btcd/rpcclient`.

sweep/fee_bumper.go

@@ -427,7 +427,7 @@ func (t *TxPublisher) createRBFCompliantTx(req *BumpRequest,
 			fallthrough
 
 		// We are not paying enough fees so we increase it.
-		case errors.Is(err, rpcclient.ErrInsufficientFee):
+		case errors.Is(err, chain.ErrInsufficientFee):
 			increased := false
 
 			// Keep calling the fee function until the fee rate is
@@ -934,7 +934,7 @@ func (t *TxPublisher) createAndPublishTx(requestID uint64,
 	// - if the deadline is close, we expect the fee function to give us a
 	//   higher fee rate. If the fee rate cannot satisfy the RBF rules, it
 	//   means the budget is not enough.
-	if errors.Is(err, rpcclient.ErrInsufficientFee) ||
+	if errors.Is(err, chain.ErrInsufficientFee) ||
 		errors.Is(err, lnwallet.ErrMempoolFee) {
 
 		log.Debugf("Failed to bump tx %v: %v", oldTx.TxHash(), err)
@@ -989,7 +989,7 @@ func (t *TxPublisher) createAndPublishTx(requestID uint64,
 	//
 	// NOTE: we may get this error if we've bypassed the mempool check,
 	// which means we are suing neutrino backend.
-	if errors.Is(result.Err, rpcclient.ErrInsufficientFee) ||
+	if errors.Is(result.Err, chain.ErrInsufficientFee) ||
 		errors.Is(result.Err, lnwallet.ErrMempoolFee) {
 
 		log.Debugf("Failed to bump tx %v: %v", oldTx.TxHash(), err)

sweep/fee_bumper_test.go

@@ -8,8 +8,8 @@ import (
 
 	"github.com/btcsuite/btcd/btcutil"
 	"github.com/btcsuite/btcd/chaincfg/chainhash"
-	"github.com/btcsuite/btcd/rpcclient"
 	"github.com/btcsuite/btcd/wire"
+	"github.com/btcsuite/btcwallet/chain"
 	"github.com/lightningnetwork/lnd/chainntnfs"
 	"github.com/lightningnetwork/lnd/input"
 	"github.com/lightningnetwork/lnd/keychain"
@@ -569,7 +569,7 @@ func TestCreateRBFCompliantTx(t *testing.T) {
 				// for the first call.
 				m.wallet.On("CheckMempoolAcceptance",
 					mock.Anything).Return(
-					rpcclient.ErrInsufficientFee).Once()
+					chain.ErrInsufficientFee).Once()
 
 				// Mock the fee function to increase feerate.
 				m.feeFunc.On("Increment").Return(
@@ -591,7 +591,7 @@ func TestCreateRBFCompliantTx(t *testing.T) {
 				// for the first call.
 				m.wallet.On("CheckMempoolAcceptance",
 					mock.Anything).Return(
-					rpcclient.ErrInsufficientFee).Once()
+					chain.ErrInsufficientFee).Once()
 
 				// Mock the fee function to NOT increase
 				// feerate on the first round.
@@ -1087,7 +1087,7 @@ func TestCreateAnPublishFail(t *testing.T) {
 	// Mock the testmempoolaccept to return a fee related error that should
 	// be ignored.
 	m.wallet.On("CheckMempoolAcceptance",
-		mock.Anything).Return(rpcclient.ErrInsufficientFee).Once()
+		mock.Anything).Return(chain.ErrInsufficientFee).Once()
 
 	// Call the createAndPublish method and expect a none option.
 	resultOpt = tp.createAndPublishTx(requestID, record)