Revert "EventsService Changes. Attendees Page. Others."

This reverts commit 11fdfe1e54.

src/app/models/event.model.ts

@@ -12,7 +12,8 @@ export class Event{
     StartDate: string;
     EndDate: string;
     EventType: string;
-    Attendees: EventPerson[];
+    RequiredAttendees: EventPerson[];
+    OptionalAttendees: EventPerson[];
     IsMeeting: boolean;
     IsRecurring: boolean;
     AppointmentState: number;

src/app/models/eventperson.model.ts

@@ -1,5 +1,4 @@
 export class EventPerson{
     EmailAddress: string;
     Name: string;
-    IsRequired: boolean;
 }