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