The device supports deletion of a single VLAN or VLANs in a batch.
- Delete VLAN 10.
<HUAWEI> system-view [HUAWEI] undo vlan 10
- Delete VLAN 10 to VLAN 20 in a batch.
<HUAWEI> system-view [HUAWEI] undo vlan batch 10 to 20

The earlier versions of V200R005, before deleting a VLAN where a VLANIF interface has been configured, run the undo interface vlanif command to delete the VLANIF interface.
More Information: S Series Switches Common Operation Guide