Disable automatic udev rules for network interfaces in CentOS

[legal90]

This PR makes thec lean-up of udev rules similar to ubuntu/debian approach:
https://github.com/chef/bento/blob/6d5771a/scripts/ubuntu/networking.sh#L3-L8
https://github.com/chef/bento/blob/250efaa/scripts/debian/networking.sh#L3-L8

It's not enough just to remove /etc/udev/rules.d/70-persistent-net.rules. We should also replace it with a directory and remove /lib/udev/rules.d/75-persistent-net-generator.rules to prevent the generating of new rules.

P.s. It is already implemented in boxcutter project and it works fine:
https://github.com/boxcutter/centos/blob/a732c24/script/cleanup.sh#L3-L14

[legal90]

It really makes sense for parallels provider. Currently, after vagrant up the guest OS generates new udev rules for network devices. Everything works fine, but if user decide to pack this env to the custom box (with vagrant package), then such box will be packed with these pre-created rules.
Such custom box is unusable: network devise order is shifted (now it starts from eth1 instead of eth0) and vagrant up fails with timeout:
Parallels/vagrant-parallels#218

It's really inconvenient to remove /etc/udev/rules.d/70-persistent-net.rules manually before packaging. It is better just to prevent the generating of new rules here, while we build the base box with Packer.

[oskarpearson]

👍

This bit both me and a colleague when trying to build packer-based configs using this repo as a base.

Oskar

[cheeseplus]

+1