After moving the vms, try to move the dvpgroups to pgroups and every physical nic, maybe you have some vmkernel portgroups configured over the dvs and you cant quit after remove them.
Diego
Ing. Diego Quintana - VMware Communities Moderator - Co Founder & CEO at Wetcom Group - vEXPERT From 2010 to 2020- VCP, VSP, VTSP, VAC - Twitter: @daquintana - Blog: http://www.wetcom.com-blog & http://www.diegoquintana.net - Enjoy the vmware communities !!!
