lnd: remove support for the now obsolete SegNet4

config.go

@@ -72,7 +72,6 @@ type config struct {
 	SPVHostAdr         string `long:"spvhostadr" description:"Address of full bitcoin node. It is used in SPV mode."`
 	TestNet3           bool   `long:"testnet" description:"Use the test network"`
 	SimNet             bool   `long:"simnet" description:"Use the simulation test network"`
-	SegNet             bool   `long:"segnet" description:"Use the segragated witness test network"`
 	DebugHTLC          bool   `long:"debughtlc" description:"Activate the debug htlc mode. With the debug HTLC mode, all payments sent use a pre-determined R-Hash. Additionally, all HTLC's sent to a node with the debug HTLC R-Hash are immediately settled in the next available state transition."`
 	MaxPendingChannels int    `long:"maxpendingchannels" description:"The maximum number of incoming pending channels permitted per peer."`
 }