lnwallet: remove setup.go

This file is no longer needed as each implementation of the
WalletController is expected to handle its own set up via an instance
of the WalletDriver factory struct.

lnwallet/setup.go

@@ -1,26 +0,0 @@
-package lnwallet
-
-import (
-	"path/filepath"
-
-	"github.com/roasbeef/btcd/chaincfg"
-	"github.com/roasbeef/btcd/wire"
-	_ "github.com/roasbeef/btcwallet/walletdb/bdb"
-)
-
-// networkDir returns the directory name of a network directory to hold wallet
-// files.
-func networkDir(dataDir string, chainParams *chaincfg.Params) string {
-	netname := chainParams.Name
-
-	// For now, we must always name the testnet data directory as "testnet"
-	// and not "testnet3" or any other version, as the chaincfg testnet3
-	// paramaters will likely be switched to being named "testnet3" in the
-	// future.  This is done to future proof that change, and an upgrade
-	// plan to move the testnet3 data directory can be worked out later.
-	if chainParams.Net == wire.TestNet3 {
-		netname = "testnet"
-	}
-
-	return filepath.Join(dataDir, netname)
-}