You can delete queue mapping when they are no longer required.
To delete a queue mapping, follow these steps:
Navigate to the Applications landing page.
Click the Navigation Menu to access the Navigation List. The Navigation List displays the list of modules.
Select Case Assignment Rules. The Case Assignment Rules page opens.
Select one of records from the Primary Rules list. The User Details page pops up in the bottom drawer.
Under the Actions column, click the Delete icon. A confirmation message appears.
Click Delete. The mapping between user group and queue is deleted and removed from the Queue List. The queue also disappears from any existing User Group Queue mappings.
Note:
Any queue edited or deleted shall be impacted on the Case Assignment Rules screen.