Update serviceWorker.ts

Author: FedoseevSM

src/lib/serviceWorker.ts

@@ -94,11 +94,3 @@ class ServiceWorkerManager {
       console.log('Service Worker unregistered');
     }
   }
-
-  get isRegistered(): boolean {
-    return this.registration !== null;
-  }
-}
-
-// Export singleton instance
-export const swManager = new ServiceWorkerManager();