chore(mobile): drop unused stack getAll

mobile/lib/infrastructure/repositories/stack.repository.dart

@@ -1,5 +1,4 @@
 import 'package:drift/drift.dart';
-import 'package:immich_mobile/domain/models/stack.model.dart';
 import 'package:immich_mobile/infrastructure/entities/stack.entity.drift.dart';
 import 'package:immich_mobile/infrastructure/repositories/db.repository.dart';
 
@@ -23,14 +22,6 @@ class DriftStackRepository extends DriftDatabaseRepository {
   final Drift _db;
   const DriftStackRepository(this._db) : super(_db);
 
-  Future<List<Stack>> getAll(String userId) {
-    final query = _db.stackEntity.select()..where((e) => e.ownerId.equals(userId));
-
-    return query.map((stack) {
-      return stack.toDto();
-    }).get();
-  }
-
   // Find stacks whose primary should flip back after a revert: a local that was
   // uploaded as an edit (prior in the stack) now hashes to a DIFFERENT member
   // that isn't the primary. Two discriminators keep this from fighting stacks
@@ -163,9 +154,3 @@ class DriftStackRepository extends DriftDatabaseRepository {
     );
   }
 }
-
-extension on StackEntityData {
-  Stack toDto() {
-    return Stack(id: id, createdAt: createdAt, updatedAt: updatedAt, ownerId: ownerId, primaryAssetId: primaryAssetId);
-  }
-}