Remove code duplication

Author: schmidt-sebastian

packages/firestore/src/core/component_provider.ts

@@ -164,12 +164,7 @@ export class IndexedDbOfflineComponentProvider extends MemoryOfflineComponentPro
   gcScheduler!: GarbageCollectionScheduler | null;
 
   async initialize(cfg: ComponentConfiguration): Promise<void> {
-    this.sharedClientState = this.createSharedClientState(cfg);
-    this.persistence = this.createPersistence(cfg);
-    await this.persistence.start();
-    this.gcScheduler = this.createGarbageCollectionScheduler(cfg);
-    this.localStore = this.createLocalStore(cfg);
-
+    await super.initialize(cfg);
     await synchronizeLastDocumentChangeReadTime(this.localStore);
   }