Nova create server predicate shouldn't check the addresses

The NovaComputeServiceAdapter waits until the created server exists and has IP addresses.

This is an issue when the server creation fails (for example because the selected hardware profile is too small for the image) and the server is returned in ERROR state. In that case, the server won't get the ip addresses assigned, but the adapter will wait up to 30 minutes before giving up and rolling back the node.

The ip addresses check should be removed from there, and let the base jclouds classes handle the polling on the status of the server. The server transformation function should take care of properly populating the IP addresses, but they shouldn't be taken into account in the server creation polling.