remove unnecessary public types

.gitignore

@@ -30,3 +30,5 @@ centrifuge-sources.jar
 centrifuge.aar
 BUILDS/
 vendor/
+.idea
+.vscode

client.go

@@ -9,7 +9,6 @@ import (
 // Client to connect to Centrifuge-based server or Centrifugo.
 type Client struct {
 	client *gocentrifuge.Client
-	events *EventHub
 }
 
 // Config defaults.
@@ -48,7 +47,6 @@ func New(u string, config *Config) *Client {
 	}
 	client := &Client{
 		client: gocentrifuge.New(u, c),
-		events: NewEventHub(),
 	}
 	return client
 }

events.go

@@ -69,21 +69,6 @@ type ErrorHandler interface {
 	OnError(*Client, *ErrorEvent)
 }
 
-// EventHub ...
-type EventHub struct {
-	client   *Client
-	eventHub *gocentrifuge.EventHub
-}
-
-// NewEventHub ...
-func NewEventHub() *EventHub {
-	return &EventHub{}
-}
-
-func (h *EventHub) setClient(c *Client) {
-	h.client = c
-}
-
 type eventProxy struct {
 	client *Client
 
@@ -248,21 +233,6 @@ type SubscribeErrorHandler interface {
 	OnSubscribeError(*Subscription, *SubscribeErrorEvent)
 }
 
-// SubscriptionEventHub ...
-type SubscriptionEventHub struct {
-	sub         *Subscription
-	subEventHub *gocentrifuge.SubscriptionEventHub
-}
-
-// NewSubscriptionEventHub initializes new SubscriptionEventHub.
-func NewSubscriptionEventHub() *SubscriptionEventHub {
-	return &SubscriptionEventHub{}
-}
-
-func (h *SubscriptionEventHub) setSub(s *Subscription) {
-	h.sub = s
-}
-
 type subEventProxy struct {
 	sub *Subscription