removeWebhook method added.

bot.go

@@ -345,6 +345,10 @@ func (bot *BotAPI) GetUpdates(config UpdateConfig) ([]Update, error) {
 	return updates, nil
 }
 
+func (bot *BotAPI) RemoveWebhook() (APIResponse, error) {
+	return bot.MakeRequest("setWebhook", url.Values{})
+}
+
 // SetWebhook sets a webhook.
 // If this is set, GetUpdates will not get any data!
 //
@@ -352,9 +356,7 @@ func (bot *BotAPI) GetUpdates(config UpdateConfig) ([]Update, error) {
 func (bot *BotAPI) SetWebhook(config WebhookConfig) (APIResponse, error) {
 	if config.Certificate == nil {
 		v := url.Values{}
-		if !config.Clear {
-			v.Add("url", config.URL.String())
-		}
+		v.Add("url", config.URL.String())
 
 		return bot.MakeRequest("setWebhook", v)
 	}

bot_test.go

@@ -437,17 +437,15 @@ func TestSetWebhook(t *testing.T) {
 		t.Fail()
 	}
 
-	wh := tgbotapi.WebhookConfig{Clear: true}
-	_, err = bot.SetWebhook(wh)
+	bot.RemoveWebhook()
 
-	wh = tgbotapi.NewWebhookWithCert("https://example.com/tgbotapi-test/" + bot.Token, "tests/cert.pem")
+	wh := tgbotapi.NewWebhookWithCert("https://example.com/tgbotapi-test/"+bot.Token, "tests/cert.pem")
 	_, err = bot.SetWebhook(wh)
 	if err != nil {
 		t.Fail()
 	}
 
-	wh = tgbotapi.WebhookConfig{Clear: true}
-	_, err = bot.SetWebhook(wh)
+	bot.RemoveWebhook()
 }
 
 func TestUpdatesChan(t *testing.T) {

configs.go

@@ -436,7 +436,6 @@ type UpdateConfig struct {
 
 // WebhookConfig contains information about a SetWebhook request.
 type WebhookConfig struct {
-	Clear       bool
 	URL         *url.URL
 	Certificate interface{}
 }

helpers.go

@@ -206,8 +206,7 @@ func NewWebhook(link string) WebhookConfig {
 	u, _ := url.Parse(link)
 
 	return WebhookConfig{
-		URL:   u,
-		Clear: false,
+		URL: u,
 	}
 }
 
@@ -220,7 +219,6 @@ func NewWebhookWithCert(link string, file interface{}) WebhookConfig {
 
 	return WebhookConfig{
 		URL:         u,
-		Clear:       false,
 		Certificate: file,
 	}
 }