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/closing-stock/closing-stock-resolver.service.spec.ts

@@ -1,10 +1,12 @@
 import { inject, TestBed } from '@angular/core/testing';
+import { HttpClientModule } from '@angular/common/http';
 
 import { ClosingStockResolver } from './closing-stock-resolver.service';
 
 describe('ClosingStockResolver', () => {
   beforeEach(() => {
     TestBed.configureTestingModule({
+      imports: [HttpClientModule],
       providers: [ClosingStockResolver],
     });
   });

overlord/src/app/closing-stock/closing-stock.component.spec.ts

@@ -1,4 +1,6 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { ReactiveFormsModule } from '@angular/forms';
+import { RouterTestingModule } from '@angular/router/testing';
 
 import { ClosingStockComponent } from './closing-stock.component';
 
@@ -8,6 +10,7 @@ describe('ClosingStockComponent', () => {
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({
+      imports: [ReactiveFormsModule, RouterTestingModule],
       declarations: [ClosingStockComponent],
     }).compileComponents();
   }));

overlord/src/app/closing-stock/closing-stock.service.spec.ts

@@ -1,10 +1,12 @@
 import { inject, TestBed } from '@angular/core/testing';
+import { HttpClientModule } from '@angular/common/http';
 
 import { ClosingStockService } from './closing-stock.service';
 
 describe('ClosingStockService', () => {
   beforeEach(() => {
     TestBed.configureTestingModule({
+      imports: [HttpClientModule],
       providers: [ClosingStockService],
     });
   });