Took out potentially problematic checks/code in the vc_vm module

"Premature optimization is the root of all evil"

This code wasn't doing what I thought it would do to begin with, and does nothing but potentially add problems in the future.
The code was meant to avoid editing a network configuration that's already configured correctly, but editing a network with the same config shouldn't cause any issues (and the VM is being reset anyway, so no real issues should come from that).