guard LocalRecordingButton with _shouldShowButton

interface_config.js

@@ -48,7 +48,8 @@ var interfaceConfig = {
         'microphone', 'camera', 'closedcaptions', 'desktop', 'fullscreen',
         'fodeviceselection', 'hangup', 'profile', 'info', 'chat', 'recording',
         'livestreaming', 'etherpad', 'sharedvideo', 'settings', 'raisehand',
-        'videoquality', 'filmstrip', 'invite', 'feedback', 'stats', 'shortcuts'
+        'videoquality', 'filmstrip', 'invite', 'feedback', 'stats', 'shortcuts',
+        'localrecording'
     ],
 
     SETTINGS_SECTIONS: [ 'devices', 'language', 'moderator', 'profile' ],

react/features/toolbox/components/web/Toolbox.js

@@ -381,11 +381,14 @@ class Toolbox extends Component<Props> {
                         visible = { this._shouldShowButton('camera') } />
                 </div>
                 <div className = 'button-group-right'>
-                    <LocalRecordingButton
-                        isDialogShown = { this.props._localRecState.showDialog }
+                    { this._shouldShowButton('localrecording')
+                        && <LocalRecordingButton
+                            isDialogShown =
+                                { this.props._localRecState.showDialog }
                             onClick = {
                                 this._onToolbarToggleLocalRecordingInfoDialog
                             } />
+                    }
                     { this._shouldShowButton('invite')
                         && !_hideInviteButton
                         && <ToolbarButton