fix: remove unused waitForAsync

[liamdebeasi]

The page spec test doesn't have any async code in the beforeEach block. Additionally, there's a missing ) that is causing a syntax error:

Error: src/app/my-page-2/my-page-2.page.spec.ts:8:33 - error TS2345: Argument of type '{ fixture: ComponentFixture<MyPage2Page>; component: MyPage2Page; "": any; }' is not assignable to parameter of type 'number'.

  8   beforeEach(waitForAsync () => {
                                    ~
  9     fixture = TestBed.createComponent(MyPage2Page);
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
... 
 11     fixture.detectChanges();
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 12   });
    ~~~


Error: src/app/my-page-2/my-page-2.page.spec.ts:9:51 - error TS1005: ',' expected.

9     fixture = TestBed.createComponent(MyPage2Page);
                                                    ~

This PR removes waitForAsync to avoid the error and remove the unused code.

[liamdebeasi]

I made this PR even after I reviewed and approved #501 which is an exact copy of this change 😂 . Closing in favor of the merged PR.