fix demo module

Author: andrewseguin

src/demo-app/demo-app/demo-module.ts

@@ -65,7 +65,6 @@ import {TypographyDemo} from '../typography/typography-demo';
 import {DemoApp, Home} from './demo-app';
 import {DEMO_APP_ROUTES} from './routes';
 import {PaginatorDemo} from '../paginator/paginator-demo';
-import {PaginatorDemo} from '../paginator/paginator-demo';
 
 @NgModule({
   imports: [