Revert "feat(designer): reset feature on test mode now resets all sub…

…ject data that belongs to the editor."

This reverts commit 04f08ba

app/lib/screens/app_onboarding/preview.dart

@@ -66,17 +66,15 @@ class Preview {
     // delete study subscription and progress
     if (containsQueryPair('cmd', 'reset')) {
       if (selectedStudyObjectId != null) {
-        final List<StudySubject> subjects =
-            await SupabaseQuery.getAll<StudySubject>();
-
-        final List<StudySubject> subjectsToDelete = subjects
-            .where((subject) =>
-                subject.userId == Supabase.instance.client.auth.currentUser!.id,)
-            .toList();
-
-        subjectsToDelete.forEach((subject) async {
-          await subject.delete();
-        });
+        final StudySubject subject = await SupabaseQuery.getById<StudySubject>(
+          selectedStudyObjectId!,
+          selectedColumns: [
+            '*',
+            'study!study_subject_studyId_fkey(*)',
+            'subject_progress(*)',
+          ],
+        );
+        subject.delete();
         deleteActiveStudyReference();
         selectedStudyObjectId = '';
       }