Fixes a problem not showing remote video menu in case of all moderators. (#2130)

Removes hasRemoteVideoMenu from RemoteVideo.
In some cases where mod_muc_allowners is enabled we do not see the remote video menu. The problem was in the order of initialization of remote video component.
RemoteVideo#constructor -> Remotevideo#addaddRemoteVideoContainer -> Remotevideo#addRemoteVideoMenu  -> RemoteVideo#hasRemoteVideoMenu = true
Then in VideoLayout#showModeratorIndicator -> !remoteVideo.hasRemoteVideoMenu -> remoteVideo.addRemoteVideoMenu().

modules/UI/videolayout/RemoteVideo.js

     this.videoSpanId = `participant_${this.id}`;
     SmallVideo.call(this, VideoLayout);
     this._audioStreamElement = null;
-    this.hasRemoteVideoMenu = false;
     this._supportsRemoteControl = false;
     this.statsPopoverLocation = interfaceConfig.VERTICAL_FILMSTRIP
         ? 'left bottom' : 'top center';
  *
  * @param isMuted the new muted state to update to
  */
-RemoteVideo.prototype.updateRemoteVideoMenu = function(
-        isMuted = this.isAudioMuted) {
-    this.isAudioMuted = isMuted;
+RemoteVideo.prototype.updateRemoteVideoMenu = function(isMuted) {
+
+    if (typeof isMuted !== 'undefined') {
+        this.isAudioMuted = isMuted;
+    }
 
     this._generatePopupContent();
 };
     }
 
     this._generatePopupContent();
-
-    this.hasRemoteVideoMenu = true;
 };
 
 /**
     if (menuSpan.length) {
         ReactDOM.unmountComponentAtNode(menuSpan.get(0));
         menuSpan.remove();
-        this.hasRemoteVideoMenu = false;
     }
 };
 

modules/UI/videolayout/VideoLayout.js

                 remoteVideo.addModeratorIndicator();
             }
 
-            if (isModerator) {
-                // We are moderator, but user is not - add menu
-                if (!remoteVideo.hasRemoteVideoMenu) {
-                    remoteVideo.addRemoteVideoMenu();
-                }
-            }
+            remoteVideo.updateRemoteVideoMenu();
         });
     },