[BUG] In the datasources view groups of a datasource can't be removed

[c3s4rfred]

Describe the bug
In the datasources view once you asign a group to a source, you can't remove it

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Data Sources -> Sources' menu
2. Click on the 'Yellow' marked option in the image below
3. Add a new or select existing group to a data source from the list
4. See that you can't remove by the same option, only gets removed if you delete the group

Expected behavior
You can remove the group associated to a specific datasource

Screenshots

Environment

• UTMStack QA

Additional context
Add any other context about the problem here.