lxd/cluster: Update for GetNonPendingNetworkIDs changes
lxd/cluster: Update for GetNonPendingNetworkIDs changes

Signed-off-by: cstout <6a13e5f8258371826a642784ab8c0114b3e75248@utexas.edu>

hallyn/lxd,lxc/lxd,hallyn/lxd,stgraber/lxd,lxc/lxd,hallyn/lxd,lxc/lxd,hallyn/lxd,stgraber/lxd,hallyn/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,hallyn/lxd,stgraber/lxd,lxc/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,lxc/lxd