Merge pull request #1012 from Astone-Chou/lint

improve code quality

network/default.go

@@ -823,7 +823,7 @@ func (n *network) processCtrlChan(listener tunnel.Listener) {
 					log.Tracef("Network metric for router %s and gateway %s: %v", event.Route.Router, event.Route.Gateway, metric)
 
 					// check we don't overflow max int 64
-					if d := route.Metric + metric; d > math.MaxInt64 || d <= 0 {
+					if d := route.Metric + metric; d <= 0 {
 						// set to max int64 if we overflow
 						route.Metric = math.MaxInt64
 					} else {

network/service/handler/handler.go

@@ -94,11 +94,6 @@ func (n *Network) Connect(ctx context.Context, req *pbNet.ConnectRequest, resp *
 
 // Nodes returns the list of nodes
 func (n *Network) Nodes(ctx context.Context, req *pbNet.NodesRequest, resp *pbNet.NodesResponse) error {
-	depth := uint(req.Depth)
-	if depth <= 0 || depth > network.MaxDepth {
-		depth = network.MaxDepth
-	}
-
 	// root node
 	nodes := map[string]network.Node{}