lnd: use a single instance of a FeeEstimator daemon-wide

rpcserver.go

@@ -688,7 +688,7 @@ func (r *rpcServer) fetchActiveChannel(chanPoint wire.OutPoint) (*lnwallet.Light
 	// Otherwise, we create a fully populated channel state machine which
 	// uses the db channel as backing storage.
 	return lnwallet.NewLightningChannel(r.server.lnwallet.Signer, nil,
-		lnwallet.StaticFeeEstimator{FeeRate: 250}, dbChan)
+		r.server.feeEstimator, dbChan)
 }
 
 // forceCloseChan executes a unilateral close of the target channel by

server.go

@@ -305,7 +305,7 @@ func newServer(listenAddrs []string, notifier chainntnfs.ChainNotifier,
 				if chanID.IsChanPoint(channel.ChanID) {
 					return lnwallet.NewLightningChannel(
 						wallet.Signer, notifier,
-						lnwallet.StaticFeeEstimator{FeeRate: 250},
+						s.feeEstimator,
 						channel)
 				}
 			}