fix: clean code related to Hub

pkg/api/handler_overview.go

@@ -26,7 +26,6 @@ type features struct {
 	Tracing   string `json:"tracing"`
 	Metrics   string `json:"metrics"`
 	AccessLog bool   `json:"accessLog"`
-	Hub       bool   `json:"hub"`
 	// TODO add certificates resolvers
 }
 
@@ -248,7 +247,6 @@ func getFeatures(conf static.Configuration) features {
 		Tracing:   getTracing(conf),
 		Metrics:   getMetrics(conf),
 		AccessLog: conf.AccessLog != nil,
-		Hub:       conf.Hub != nil,
 	}
 }
 

pkg/api/handler_overview_test.go

@@ -15,7 +15,6 @@ import (
 	"github.com/traefik/traefik/v2/pkg/config/static"
 	"github.com/traefik/traefik/v2/pkg/provider/docker"
 	"github.com/traefik/traefik/v2/pkg/provider/file"
-	"github.com/traefik/traefik/v2/pkg/provider/hub"
 	"github.com/traefik/traefik/v2/pkg/provider/kubernetes/crd"
 	"github.com/traefik/traefik/v2/pkg/provider/kubernetes/ingress"
 	"github.com/traefik/traefik/v2/pkg/provider/marathon"
@@ -266,7 +265,6 @@ func TestHandler_Overview(t *testing.T) {
 				Tracing: &static.Tracing{
 					Jaeger: &jaeger.Config{},
 				},
-				Hub: &hub.Provider{},
 			},
 			confDyn: runtime.Configuration{},
 			expected: expected{

pkg/api/testdata/overview-dynamic.json

@@ -2,8 +2,7 @@
 	"features": {
 		"accessLog": false,
 		"metrics": "",
-		"tracing": "",
-		"hub": false
+		"tracing": ""
 	},
 	"http": {
 		"middlewares": {

pkg/api/testdata/overview-empty.json

@@ -2,8 +2,7 @@
 	"features": {
 		"accessLog": false,
 		"metrics": "",
-		"tracing": "",
-		"hub": false
+		"tracing": ""
 	},
 	"http": {
 		"middlewares": {

pkg/api/testdata/overview-features.json

@@ -2,8 +2,7 @@
 	"features": {
 		"accessLog": false,
 		"metrics": "Prometheus",
-		"tracing": "Jaeger",
-		"hub": true
+		"tracing": "Jaeger"
 	},
 	"http": {
 		"middlewares": {

pkg/api/testdata/overview-providers.json

@@ -2,8 +2,7 @@
 	"features": {
 		"accessLog": false,
 		"metrics": "",
-		"tracing": "",
-		"hub": false
+		"tracing": ""
 	},
 	"http": {
 		"middlewares": {