Revert "EventsService Changes. Attendees Page. Others."

This reverts commit 11fdfe1e54.

src/app/app.module.ts

@@ -10,8 +10,6 @@ import { AppRoutingModule } from './app-routing.module';
 import { AppComponent } from './app.component';
 import { HttpClientModule } from '@angular/common/http';
 
-import { InAppBrowser } from '@ionic-native/in-app-browser/ngx';
-
 @NgModule({
   declarations: [AppComponent],
   entryComponents: [],
@@ -20,8 +18,7 @@ import { InAppBrowser } from '@ionic-native/in-app-browser/ngx';
     StatusBar,
     SplashScreen,
     HttpClientModule,
-    { provide: RouteReuseStrategy, useClass: IonicRouteStrategy },
-    InAppBrowser
+    { provide: RouteReuseStrategy, useClass: IonicRouteStrategy }
   ],
   bootstrap: [AppComponent],
   schemas: [CUSTOM_ELEMENTS_SCHEMA]