FIX: JSHint failures

app/assets/javascripts/discourse/components/menu-panel.js.es6

@@ -54,7 +54,6 @@ export default Ember.Component.extend({
 
   @observes('viewMode', 'visible')
   _visibleChanged() {
-    const isDropdown = (this.get('viewMode') === 'drop-down');
     if (this.get('visible')) {
       this.appEvents.on('dropdowns:closeAll', this, this.hide);
 

app/assets/javascripts/discourse/views/invite.js.es6

@@ -14,7 +14,6 @@ export default ModalBodyView.extend({
   }.property('controller.{invitingToTopic,isMessage}'),
 
   inviteLinkChanged: function() {
-    const self = this;
     if (!Ember.isEmpty(this.get('controller.model.inviteLink'))) {
       Em.run.next(function() {
         $('.invite-link-input').select().focus();