Remove unused function

src/app/app.component.ts

@@ -35,9 +35,6 @@ export class AppComponent implements OnInit {
 		this.sidenavService.setSidenav(this.rightAddCourse);
 	}
 
-	closeSidenav(id) {
-		return id.close();
-	}
 }
 document.addEventListener('WebComponentsReady', function() {
   const customEvent = new CustomEvent('myuw-login', {