fix audio in device

src/app/shared/chat/group-messages/group-messages.module.ts

@@ -11,7 +11,6 @@ import { SharedModule } from 'src/app/shared/shared.module';
 
 import { ChatPopoverPageModule } from '../../popover/chat-popover/chat-popover.module';
 import { NewEventPageModule } from '../../agenda/new-event/new-event.module';
-import { PdfViewerModule } from 'ng2-pdf-viewer';
 import { FontAwesomeModule } from '@fortawesome/angular-fontawesome';
 import {MatMenuModule} from '@angular/material/menu';
 import { LettersAvatarModule } from "ngx-letters-avatar";
@@ -23,7 +22,6 @@ import { PipesModule } from 'src/app/pipes/pipes.module';
     FormsModule,
     IonicModule,
     FontAwesomeModule,
-    PdfViewerModule,
     ChatPopoverPageModule,
     GroupMessagesPageRoutingModule,
     MatMenuModule,