Disable onBandwidthUpdate for iOS since it's not working yet

README.md

@@ -806,7 +806,7 @@ Example:
 
 Note: On Android ExoPlayer, you must set the [reportBandwidth](#reportbandwidth) prop to enable this event. This is due to the high volume of events generated.
 
-Platforms: Android ExoPlayer, iOS
+Platforms: Android ExoPlayer
 
 #### onEnd
 Callback function that is called when the player reaches the end of the media.

ios/Video/RCTVideo.m

@@ -719,9 +719,11 @@ static int const RCTVideoUnset = -1;
     AVPlayerItemAccessLog *accessLog = [((AVPlayerItem *)notification.object) accessLog];
     AVPlayerItemAccessLogEvent *lastEvent = accessLog.events.lastObject;
     
+    /* TODO: get this working
     if (self.onBandwidthUpdate) {
         self.onBandwidthUpdate(@{@"bitrate": [NSNumber numberWithFloat:lastEvent.observedBitrate]});
     }
+    */
 }
 
 - (void)playbackStalled:(NSNotification *)notification