Update video-crop demo note

Not requiring an experimental flag anymore

Author: ggarber

src/content/insertable-streams/video-crop/index.html

@@ -49,9 +49,7 @@ <h1><a href="//webrtc.github.io/samples/" title="WebRTC samples homepage">WebRTC
 
     <p>
         <b>Note</b>: This sample is using an experimental API that has not yet been standardized. As
-        of 2021-07-16, this API is available in Chrome M91 if the experimental code is enabled on
-        the command line with
-        <code>--enable-blink-features=MediaStreamInsertableStreams</code>.
+        of 2022-11-21, this API is available in the latest version of Chrome based browsers.
     </p>
     <a href="https://github.com/webrtc/samples/tree/gh-pages/src/content/insertable-streams/video-crop"
        title="View source for this page on GitHub" id="viewSource">View source on GitHub</a>