test: remove unknown async function (was breaking)

remove done parameter from assertion function

Author: Michael Krone

68-testing-component-inputs-outputs/app/stock-inventory/components/stock-counter/stock-counter.component.spec.ts

@@ -62,11 +62,11 @@ describe('StockCounterComponent', () => {
     expect(component.value).toBe(20);
   });
 
-  it('should call the output on a value change', async((done) => {
+  it('should call the output on a value change', () => {
     spyOn(component.changed, 'emit').and.callThrough();
     component.step = 100;
     component.increment();
     expect(component.changed.emit).toHaveBeenCalledWith(100);
-  }));
+  });
 
 });