fix: remove loading spinner on ended (#7311)

If we've ended, there's no point in having the loading spinner. In
addition, there are cases where we get a waiting event immediately
before ended, and this works around that.

Fixes videojs/http-streaming#1156

Author: gkatsev

src/js/player.js

@@ -1894,6 +1894,7 @@ class Player extends Component {
    */
   handleTechEnded_() {
     this.addClass('vjs-ended');
+    this.removeClass('vjs-waiting');
     if (this.options_.loop) {
       this.currentTime(0);
       this.play();