
For networks with subnets with enabled DHCP service don't provide mtu value in the metadata. That way cloud-init will not configure it "statically" in e.g. netplan's config file and guest OS will use MTU value provided by the DHCP service. Closes-Bug: #1899487 Change-Id: Ib775c2210349b72b3dc033554ac6d8b35b8d2d79