OZG-7473 remove function

Based on CR comment.

alfa-client/libs/test-utils/src/lib/jest.helper.ts

@@ -39,10 +39,6 @@ export function expectComponentExistsInTemplate<T>(fixture: ComponentFixture<any
   expect(getElementFromFixtureByType(fixture, component)).toBeInstanceOf(component);
 }
 
-export function expectComponentMissingInTemplate<T>(fixture: ComponentFixture<any>, component: Type<T>): void {
-  expect(getElementFromFixtureByType(fixture, component)).toBeUndefined();
-}
-
 export function tooltipExistsWithText(fixture: ComponentFixture<any>, domElement: string, tooltipText: string) {
   const tooltipInstance = getDebugElementFromFixtureByCss(fixture, domElement).injector.get(TooltipDirective);
   expect(tooltipInstance.componentRef.instance.text).toBe(tooltipText);