updated docs

Signed-off-by: Nwusongqing <wusongqing@huawei.com>

en/application-dev/media/video-playback.md

@@ -28,8 +28,6 @@ For details about the APIs used for video playback, see [js-apis-media.md](../re
 
 The full video playback process includes creating an instance, setting the URL, setting the surface ID, preparing for video playback, playing video, pausing playback, obtaining track information, seeking to a playback position, setting the volume, setting the playback speed, stopping playback, resetting the playback configuration, and releasing resources.
 
-For details about the **url** media source input types supported by **VideoPlayer**, see the [url attribute](../reference/apis/js-apis-media.md#videoplayer_Attributes).
-
 ```js
 let videoPlayer = undefined; // Used to store instances created by calling the createVideoPlayer method.
 let surfaceID = undefined; // Used to save the surface ID returned by the Xcomponent interface.