Remove unused WebNotificationData constructor

public/platform/modules/notifications/WebNotificationData.h

Index: public/platform/modules/notifications/WebNotificationData.h
diff --git a/public/platform/modules/notifications/WebNotificationData.h b/public/platform/modules/notifications/WebNotificationData.h
index f9513f4a7e02c4038ade2fc2183617d4708b21c0..5c50754b24323406e85388550d864095343b78a4 100644
--- a/public/platform/modules/notifications/WebNotificationData.h
+++ b/public/platform/modules/notifications/WebNotificationData.h
@@ -26,20 +26,6 @@ struct WebNotificationData {
     {
     }
 
-    WebNotificationData(const WebString& title, Direction direction, const WebString& lang, const WebString& body, const WebString& tag, const WebURL& icon, const WebVector<int>& vibrate, bool silent, const WebVector<char>& data, const WebVector<WebNotificationAction>& actions)
-        : title(title)
-        , direction(direction)
-        , lang(lang)
-        , body(body)
-        , tag(tag)
-        , icon(icon)
-        , vibrate(vibrate)
-        , silent(silent)
-        , data(data)
-        , actions(actions)
-    {
-    }
-
     WebString title;
     Direction direction;
     WebString lang;