remove todo

Author: davidmartos96

packages/powersync_core/lib/src/database/powersync_db_mixin.dart

@@ -484,7 +484,7 @@ mixin PowerSyncDatabaseMixin implements SqliteConnection {
   /// Get an unique id for this client.
   /// This id is only reset when the database is deleted.
   Future<String> getClientId() async {
-    _checkSchemaIsReady(); // TODO(skilldevs): Needed?
+    _checkSchemaIsReady();
     final row = await get('SELECT powersync_client_id() as client_id');
     return row['client_id'] as String;
   }