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/balance-sheet/balance-sheet-resolver.service.spec.ts

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

overlord/src/app/balance-sheet/balance-sheet.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 { BalanceSheetComponent } from './balance-sheet.component';
 
@@ -8,6 +10,7 @@ describe('BalanceSheetComponent', () => {
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({
+      imports: [ReactiveFormsModule, RouterTestingModule],
       declarations: [BalanceSheetComponent],
     }).compileComponents();
   }));

overlord/src/app/balance-sheet/balance-sheet.service.spec.ts

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