Deleted Automation policy check items don't clean up checkresult model

[silversword411]

Server Info (please complete the following information):

• RMM Version (as shown in top left of web UI): v0.19.4

Describe the bug
When you delete a check in automation manager it doesn't cleanup all the data in the checkresult model

To Reproduce
Steps to reproduce the behavior:

1. Create automation > check > script item. Get some history.
2. Delete the check from automation manager.
3. recreate the item in automation manager
4. See many checks of the same item

Expected behavior
Deleted automation manager check should clean up results

Screenshots

Here's a report with the extra checks listed

All Fields - Task Resultv9 - showchecknames test-export.json

[P6g9YHK6]

probably the same issue as
#1928