Remove note about "canplay" that references code removed from the exa…

…mple (related to autoplay policy)

Closes #3153

README.md

@@ -357,12 +357,6 @@ native browser support for HLS playback in HTMLMediaElements:
   // we can provide an HLS manifest (i.e. .m3u8 URL) directly to the video
   // element through the `src` property. This is using the built-in support
   // of the plain video element, without using HLS.js.
-  //
-  // Note: it would be more normal to wait on the 'canplay' event below however
-  // on Safari (where you are most likely to find built-in HLS support) the
-  // video.src URL must be on the user-driven white-list before a 'canplay'
-  // event will be emitted; the last video event that can be reliably
-  // listened-for when the URL is not on the white-list is 'loadedmetadata'.
   else if (video.canPlayType('application/vnd.apple.mpegurl')) {
     video.src = videoSrc;
   }