Remove image.log from nodepool logging
Remove image.log from nodepool logging

With nodepool feature/zuulv3, we have removed support for snapshot
images. As a results, this file is no longer needed.

Change-Id: I7471156cffc0798c30c2a1ef8404c93ffb715183
Signed-off-by: Paul Belanger <e7139c8e6c4ea75cc1c287ce081b2dc0f3ab39ec@redhat.com>

openstack/ansible-role-nodepool,openstack/ansible-role-nodepool