Remove the downloading samples record

Author: HoonBaek

SAMPLES.md

@@ -3,11 +3,7 @@
 ![Languages](https://img.shields.io/badge/language-JAVASCRIPT-orange.svg)
 [![npm](https://img.shields.io/npm/v/sendbird.svg?style=popout&colorB=red)](https://www.npmjs.com/package/sendbird)
 
-Sendbird UIKit for React is a development kit with an user interface that enables an easy and fast integration of standard chat features into new or existing client apps. Here are three UIKit samples for React in the submodules.
-
-* **simple-react-app** is a chat app which is comprised of UIKit’s most essential components.
-* **composed-react-app** is a chat app which contains various smart components.
-* **custom-react-app** is a chat app which contains customizable sample codes for **Message**, **ChannelPreview**, and **UserList**. 
+Sendbird UIKit for React is a development kit with an user interface that enables an easy and fast integration of standard chat features into new or existing client apps.
 
 ### More about Sendbird UIKit for React