Description of problem:
In version 7.4.0, we provide a local mirror of the repository under the /etc/ostree/remotes.d/, if users register system to Red Hat Subscription Management, and then users will have 3 ostree configurations, it will cause 'error: Multiple specifications found for remote "rhel-atomic-host-ostree"' when upgrading atomic host.

Version-Release number of selected component (if applicable):

[root@atomic-host-test-4109 cloud-user]# cat /etc/redhat-release 
Red Hat Enterprise Linux Atomic Host release 7.4

[root@atomic-host-test-4109 cloud-user]# atomic host status
State: idle
Deployments:
● rhel-atomic-host:rhel-atomic-host/7/x86_64/standard
                Version: 7.4.0 (2017-06-20 02:16:02)
                 Commit: c55bf46b4baaee58d637774e8515bc7e88b96e4acf099d8bca39c27757201442


How reproducible:
always

Steps to Reproduce:
1. deploy rhel-atomic-cloud-7.4.0-6.x86_64.qcow2 by libvirt/kvm and boot
2. register system to Red Hat Subscription Management
3. atomic host upgrade

Actual results:

[root@atomic-host-test-4109 cloud-user]# ls /etc/ostree/remotes.d/
redhat.conf  rhel-atomic-host.conf  rhel-atomic-host-ostree.conf

[root@atomic-host-test-4109 cloud-user]# atomic host upgrade
error: Multiple specifications found for remote "rhel-atomic-host-ostree"

Expected results:


Additional info: