You can delete user-defined network resource pools that are no longer in use.
- Open a vSphere Client connection to a vCenter Server.
- Remove all distributed port groups from the network resource pool.
- Log in to the vSphere Client and select the Networking inventory view.
- Select the vSphere distributed switch in the inventory pane.
- On the Resource Allocation tab, right-click the user-defined network resource pool to delete, and select Remove.
- Click Yes.