multi: use btcd's btcec/v2 and btcutil modules

This commit was previously split into the following parts to ease
review:
 - 2d746f68: replace imports
 - 4008f0fd: use ecdsa.Signature
 - 849e33d1: remove btcec.S256()
 - b8f6ebbd: use v2 library correctly
 - fa80bca9: bump go modules

go.mod

@@ -1,21 +1,21 @@
 module github.com/lightningnetwork/lnd
 
 require (
-	git.schwanenlied.me/yawning/bsaes.git v0.0.0-20180720073208-c0276d75487e // indirect
-	github.com/NebulousLabs/fastrand v0.0.0-20181203155948-6fb6489aac4e // indirect
 	github.com/NebulousLabs/go-upnp v0.0.0-20180202185039-29b680b06c82
 	github.com/Yawning/aez v0.0.0-20180114000226-4dad034d9db2
-	github.com/btcsuite/btcd v0.22.0-beta.0.20211005184431-e3449998be39
+	github.com/btcsuite/btcd v0.22.0-beta.0.20220207191057-4dc4ff7963b4
+	github.com/btcsuite/btcd/btcec/v2 v2.1.0
+	github.com/btcsuite/btcd/btcutil v1.1.0
+	github.com/btcsuite/btcd/btcutil/psbt v1.1.0
 	github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f
-	github.com/btcsuite/btcutil v1.0.3-0.20210527170813-e2ba6805a890
-	github.com/btcsuite/btcutil/psbt v1.0.3-0.20210527170813-e2ba6805a890
-	github.com/btcsuite/btcwallet v0.13.1-0.20211201210108-79de92f527dc
-	github.com/btcsuite/btcwallet/wallet/txauthor v1.1.0
-	github.com/btcsuite/btcwallet/wallet/txrules v1.1.0
+	github.com/btcsuite/btcwallet v0.14.0
+	github.com/btcsuite/btcwallet/wallet/txauthor v1.2.1
+	github.com/btcsuite/btcwallet/wallet/txrules v1.2.0
 	github.com/btcsuite/btcwallet/walletdb v1.3.6-0.20210803004036-eebed51155ec
-	github.com/btcsuite/btcwallet/wtxmgr v1.3.1-0.20210822222949-9b5a201c344c
+	github.com/btcsuite/btcwallet/wtxmgr v1.5.0
 	github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f
 	github.com/davecgh/go-spew v1.1.1
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1
 	github.com/dvyukov/go-fuzz v0.0.0-20210602112143-b1f3d6f4ef4e
 	github.com/go-errors/errors v1.0.1
 	github.com/golang/protobuf v1.5.2
@@ -29,18 +29,10 @@ require (
 	github.com/jedib0t/go-pretty/v6 v6.2.7
 	github.com/jessevdk/go-flags v1.4.0
 	github.com/jrick/logrotate v1.0.0
-	github.com/juju/clock v0.0.0-20190205081909-9c5c9712527c // indirect
-	github.com/juju/errors v0.0.0-20190806202954-0232dcc7464d // indirect
-	github.com/juju/loggo v0.0.0-20190526231331-6e530bcce5d8 // indirect
-	github.com/juju/retry v0.0.0-20180821225755-9058e192b216 // indirect
-	github.com/juju/testing v0.0.0-20190723135506-ce30eb24acd2 // indirect
-	github.com/juju/utils v0.0.0-20180820210520-bf9cc5bdd62d // indirect
-	github.com/juju/version v0.0.0-20180108022336-b64dbd566305 // indirect
 	github.com/kkdai/bstream v1.0.0
-	github.com/kr/pretty v0.2.0 // indirect
-	github.com/lightninglabs/neutrino v0.13.0
+	github.com/lightninglabs/neutrino v0.13.2
 	github.com/lightninglabs/protobuf-hex-display v1.4.3-hex-display
-	github.com/lightningnetwork/lightning-onion v1.0.2-0.20210520211913-522b799e65b1
+	github.com/lightningnetwork/lightning-onion v1.0.2-0.20220211021909-bb84a1ccb0c5
 	github.com/lightningnetwork/lnd/cert v1.1.0
 	github.com/lightningnetwork/lnd/clock v1.1.0
 	github.com/lightningnetwork/lnd/healthcheck v1.2.0
@@ -65,10 +57,8 @@ require (
 	golang.org/x/tools v0.1.8 // indirect
 	google.golang.org/grpc v1.38.0
 	google.golang.org/protobuf v1.26.0
-	gopkg.in/errgo.v1 v1.0.1 // indirect
 	gopkg.in/macaroon-bakery.v2 v2.0.1
 	gopkg.in/macaroon.v2 v2.0.0
-	gopkg.in/mgo.v2 v2.0.0-20190816093944-a6b53ec6cb22 // indirect
 )
 
 replace github.com/lightningnetwork/lnd/ticker => ./ticker
@@ -101,6 +91,17 @@ replace github.com/ulikunitz/xz => github.com/ulikunitz/xz v0.5.8
 // https://deps.dev/advisory/OSV/GO-2021-0053?from=%2Fgo%2Fgithub.com%252Fgogo%252Fprotobuf%2Fv1.3.1
 replace github.com/gogo/protobuf => github.com/gogo/protobuf v1.3.2
 
+// The old version of ginko that's used in btcd imports an ancient version of
+// gopkg.in/fsnotify.v1 that isn't go mod compatible. We fix that import error
+// by replacing ginko (which is only a test library anyway) with a more recent
+// version.
+replace github.com/onsi/ginkgo => github.com/onsi/ginkgo v1.14.2
+
+// There's a bug in Neutrino that causes our tests to fail. Downgrade to the
+// version just before the offending PR. Can remove again once
+// https://github.com/lightninglabs/neutrino/pull/247 is merged.
+replace github.com/lightninglabs/neutrino => github.com/lightninglabs/neutrino v0.13.2-0.20220209052920-0c79b771272b
+
 // If you change this please also update .github/pull_request_template.md and
 // docs/INSTALL.md.
 go 1.16