Removed old rules from eslint

Tried hand at testing by fixing the spec files with import. However, still many errors and given up now.

overlord/src/app/auth/auth-guard.service.spec.ts

@@ -1,15 +1,15 @@
 import { inject, TestBed } from '@angular/core/testing';
 
-import { AuthGuardService } from './auth-guard.service';
+import { AuthGuard } from './auth-guard.service';
 
-describe('AuthGuardService', () => {
+describe('AuthGuard', () => {
   beforeEach(() => {
     TestBed.configureTestingModule({
-      providers: [AuthGuardService],
+      providers: [AuthGuard],
     });
   });
 
-  it('should be created', inject([AuthGuardService], (service: AuthGuardService) => {
+  it('should be created', inject([AuthGuard], (service: AuthGuard) => {
     expect(service).toBeTruthy();
   }));
 });