mod: bump kvdb to v1.4.10

To support the new comma-separated list of etcd hosts in db.etcd.host,
we need to bump the `kvdb` submodule version.
This also fixes a leader election bug in the etcd code.

go.mod

@@ -37,7 +37,7 @@ require (
 	github.com/lightningnetwork/lnd/clock v1.1.1
 	github.com/lightningnetwork/lnd/fn v1.2.0
 	github.com/lightningnetwork/lnd/healthcheck v1.2.5
-	github.com/lightningnetwork/lnd/kvdb v1.4.8
+	github.com/lightningnetwork/lnd/kvdb v1.4.10
 	github.com/lightningnetwork/lnd/queue v1.1.1
 	github.com/lightningnetwork/lnd/sqldb v1.0.3
 	github.com/lightningnetwork/lnd/ticker v1.1.1
@@ -204,9 +204,6 @@ replace github.com/gogo/protobuf => github.com/gogo/protobuf v1.3.2
 // allows us to specify that as an option.
 replace google.golang.org/protobuf => github.com/lightninglabs/protobuf-go-hex-display v1.30.0-hex-display
 
-// Temporary replace until the next version of kvdb is tagged.
-replace github.com/lightningnetwork/lnd/kvdb => ./kvdb
-
 // If you change this please also update .github/pull_request_template.md and
 // docs/INSTALL.md.
 go 1.21.4