refactor: remove outdated code

src/app/player/components/video-player/video-player.component.html

@@ -39,9 +39,6 @@
                 </button>
                 {{ activeChannel.name }}
                 <div class="spacer"></div>
-                <!-- <button mat-icon-button (click)="openAbout()">
-                    <mat-icon>info</mat-icon>
-                </button> -->
                 <button
                     *ngIf="epgAvailable$ | async"
                     mat-button

src/app/player/components/video-player/video-player.component.ts

@@ -91,13 +91,6 @@ export class VideoPlayerComponent implements OnInit {
         this.sideNav.close();
     }
 
-    /**
-     * Opens about application dialog
-     */
-    openAbout(): void {
-        this.electronService.ipcRenderer.send('show-about');
-    }
-
     /**
      * Adds/removes a given channel to the favorites list
      * @param channel channel to add