lnd+pilot: use minHTLCIn instead of whole config

To remove one more direct dependency to a variable in our main function,
we pass in the required parameter to the autopilot only instead of the
whole chain configuration.

lnd.go

@@ -894,7 +894,10 @@ func Main(cfg *Config, lisCfg ListenerCfg, interceptor signal.Interceptor) error
 	// Set up an autopilot manager from the current config. This will be
 	// used to manage the underlying autopilot agent, starting and stopping
 	// it at will.
-	atplCfg, err := initAutoPilot(server, cfg.Autopilot, mainChain, cfg.ActiveNetParams)
+	atplCfg, err := initAutoPilot(
+		server, cfg.Autopilot, activeChainControl.MinHtlcIn,
+		cfg.ActiveNetParams,
+	)
 	if err != nil {
 		err := fmt.Errorf("unable to initialize autopilot: %v", err)
 		ltndLog.Error(err)

pilot.go

@@ -137,7 +137,7 @@ var _ autopilot.ChannelController = (*chanController)(nil)
 // interfaces needed to drive it won't be launched before the Manager's
 // StartAgent method is called.
 func initAutoPilot(svr *server, cfg *lncfg.AutoPilot,
-	chainCfg *lncfg.Chain, netParams chainreg.BitcoinNetParams) (
+	minHTLCIn lnwire.MilliSatoshi, netParams chainreg.BitcoinNetParams) (
 	*autopilot.ManagerCfg, error) {
 
 	atplLog.Infof("Instantiating autopilot with active=%v, "+
@@ -177,7 +177,7 @@ func initAutoPilot(svr *server, cfg *lncfg.AutoPilot,
 			private:       cfg.Private,
 			minConfs:      cfg.MinConfs,
 			confTarget:    cfg.ConfTarget,
-			chanMinHtlcIn: chainCfg.MinHTLCIn,
+			chanMinHtlcIn: minHTLCIn,
 			netParams:     netParams,
 		},
 		WalletBalance: func() (btcutil.Amount, error) {