convert2rhel analyze remove subscription from the host

After running the convert2rhel analyze command, the CentOS7 host is no longer subscribed to the Satellite.

Steps to reproduce

• Register CentOS 7 host to Satellite 6.14
• run convert2rhel analyze
• Verify the subscription of the host

Command `subscription-manager` identity returns:

This system is not yet registered. Try 'subscription-manager register --help' for more information.