Delete a Distributed Port Group

You cannot delete the default distributed port group.
You cannot delete a distributed port group if it is referenced by a VM memory snapshot.
You cannot delete a distributed port group if it is associated with a Kernel adapter.

In the navigation pane, choose Inventory > Network Resource.
In the resource tree, select a target distributed port group.
On the distributed port group's details page, click Actions > Delete.

Deleting a distributed port group detaches the VM NICs that are using this network. Proceed with caution.
After acknowledging the risk, click OK.