Updates large video when user left and we are removing the shared video.

modules/UI/shared_video/SharedVideo.js

 SharedVideoThumb.prototype.remove = function () {
     console.log("Remove shared video thumb", this.id);
 
+    // Make sure that the large video is updated if are removing its
+    // corresponding small video.
+    this.VideoLayout.updateRemovedVideo(this.id);
+
     // Remove whole container
     if (this.container.parentNode) {
         this.container.parentNode.removeChild(this.container);