revert: undo the easier event and date formatter config as it was not aot compatible

Author: Matt Lewis

src/calendar.module.ts

@@ -54,17 +54,13 @@ import { CalendarDateFormatter } from './providers/calendarDateFormatter.provide
 })
 export class CalendarModule {
 
-  static forRoot({eventTitleFormatter, dateFormatter}:
-    {eventTitleFormatter?: Provider, dateFormatter?: Provider} = {}): ModuleWithProviders {
-
-    eventTitleFormatter = eventTitleFormatter || CalendarEventTitleProvider;
-    dateFormatter = dateFormatter || CalendarDateFormatter;
+  static forRoot(): ModuleWithProviders {
 
     return {
       ngModule: CalendarModule,
       providers: [
-        eventTitleFormatter,
-        dateFormatter
+        CalendarEventTitleProvider,
+        CalendarDateFormatter
       ]
     };
 

test/calendarModule.spec.ts

@@ -18,36 +18,4 @@ describe('calendar module', () => {
     expect(dateFormatter instanceof CalendarDateFormatter).to.be.true;
   });
 
-  it('should allow a custom date formatter to be used', () => {
-    class MyDateFormatter extends CalendarDateFormatter {}
-    TestBed.configureTestingModule({
-      imports: [
-        CalendarModule.forRoot({
-          dateFormatter: {
-            provide: CalendarDateFormatter,
-            useClass: MyDateFormatter
-          }
-        })
-      ]
-    });
-    const dateFormatter: MyDateFormatter = TestBed.get(CalendarDateFormatter);
-    expect(dateFormatter instanceof MyDateFormatter).to.be.true;
-  });
-
-  it('should allow a custom title formatter to be used', () => {
-    class MyEventTitle extends CalendarEventTitle {}
-    TestBed.configureTestingModule({
-      imports: [
-        CalendarModule.forRoot({
-          dateFormatter: {
-            provide: CalendarEventTitle,
-            useClass: MyEventTitle
-          }
-        })
-      ]
-    });
-    const eventTitle: MyEventTitle = TestBed.get(CalendarEventTitle);
-    expect(eventTitle instanceof MyEventTitle).to.be.true;
-  });
-
 });