Remove deleted service.

src/portal/src/app/dashboard/dashboard-routing.module.ts

@@ -1,6 +1,5 @@
 import { NgModule } from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
-import { AuthGuardService } from '../services/auth-guard.service';
 import { DashboardComponent } from './dashboard.component';
 
 const routes: Routes = [