Fix date-fns related exports for Core lib (#10102)

lib/core/src/lib/common/utils/date-fns-adapter.ts

@@ -65,7 +65,7 @@ export const ADF_DATE_FORMATS: MatDateFormats = {
     }
 };
 
-@Injectable()
+@Injectable({ providedIn: 'root' })
 export class AdfDateFnsAdapter extends DateFnsAdapter {
     private _displayFormat?: string = null;
 

lib/core/src/lib/common/utils/datetime-fns-adapter.ts

@@ -58,7 +58,7 @@ function range<T>(length: number, valueFunction: (index: number) => T): T[] {
     return valuesArray;
 }
 
-@Injectable()
+@Injectable({ providedIn: 'root' })
 export class AdfDateTimeFnsAdapter extends DatetimeAdapter<Date> {
     private _displayFormat?: string = null;
 

lib/core/src/lib/core.module.ts

@@ -51,9 +51,7 @@ import { loadAppConfig } from './app-config/app-config.loader';
 import { AppConfigService } from './app-config/app-config.service';
 import { StorageService } from './common/services/storage.service';
 import { AlfrescoApiLoaderService, createAlfrescoApiInstance } from './api-factories/alfresco-api-v2-loader.service';
-import { AdfDateFnsAdapter } from './common/utils/date-fns-adapter';
 import { MomentDateAdapter } from './common/utils/moment-date-adapter';
-import { AdfDateTimeFnsAdapter } from './common/utils/datetime-fns-adapter';
 import { AppConfigPipe, StoragePrefixFactory } from './app-config';
 import { IconComponent } from './icon';
 import { SortingPickerComponent } from './sorting-picker';
@@ -140,8 +138,6 @@ export class CoreModule {
                 TranslateStore,
                 TranslateService,
                 { provide: TranslateLoader, useClass: TranslateLoaderService },
-                AdfDateFnsAdapter,
-                AdfDateTimeFnsAdapter,
                 MomentDateAdapter,
                 StoragePrefixFactory,
                 {