CLOUDSTACK-4828 remove nic fails if dhcp wasn't enabled in network offering

[Patrick Miller]

Hi all,

   Is CLOUDSTACK-4828  slated for the 4.2.1 update.

 We currently do not use the Virtual Routers, Our ACS world share a common
network infrastructure with the rest of lab servers.

 Having to run a clean up sql job each night is not elegant.


 Thanks for all the great work.

 Patrick