Deleting VLAN Configuration

1900 Series Switch
1900Switch#delete vtp
or
1900Switch(config)#int fa 0/2
1900Switch(config-if)#no vlan static 2
1900Switch(config-if)#exit
1900Switch(config)#no vlan 2 name Sales
1900Switch(config)#

2900/2950 Series Switch
2900Switch#delete flash:vlan.dat
Delete filename [ ]? vlan.dat
Delete flash:vlan.dat? [confirm]
2900Switch#
or
2900Switch#config t
2900Switch(config)#int fa 0/3
2900Switch(config-if)#no switchport access vlan 3
2900Switch(config-if)#exit
2900Switch(config)#exit
2900Switch#vlan database
2900(vlan)#no vlan 3
2900(vlan)#exit