removed unused imports

src/app/app.ts

@@ -1,11 +1,9 @@
 import { Component } from '@angular/core';
 import { RouterOutlet } from '@angular/router';
-import { SiteHeader } from './site-header/site-header';
-import { SiteFooter } from './site-footer/site-footer';
 
 @Component({
   selector: 'app-root',
-  imports: [RouterOutlet, SiteHeader, SiteFooter],
+  imports: [RouterOutlet],
   templateUrl: './app.html',
   styleUrl: './app.scss'
 })