Remove useless code

src/app/components/pages/room-creator-page/room-creator-page.component.scss

 mat-card {
-  max-width: 800px;
-  min-width: 800px;
+  width: 800px;
 }
 
 mat-card-content > :first-child {

src/app/components/pages/room-participant-page/room-participant-page.component.ts

@@ -33,8 +33,4 @@ export class RoomParticipantPageComponent implements OnInit {
         this.isLoading = false;
       });
   }
-
-  /*goToComments(): void {
-    this.router.navigate([`/participant/room/${this.room.shortId}/comments`]);
-  }*/
 }