After deleting question or answer qameta stays in the database

[cema93]

Describe the bug

After fully deleting question or answer qameta stays in the database

To Reproduce

Steps to reproduce the behavior:

1. create new questein or answer
2. fully delete it
3. go to database(i use mariaDB)
4. make a sql request select count(post_id) FROM wp_ap_qameta LEFT JOIN wp_posts ON wp_ap_qameta.post_id = wp_posts.ID WHERE wp_posts.ID IS NULL;
5. See that there is a lot of question and answer meta in the database that no longer exists

Expected behavior

Q&A meta should be removed when deleting a post

[rahularyan]

Thanks for reporting.
@mebishalnapit Please look into this issue when you can.