Description of problem:
Hosted Engine Deployment wizard in cockpit asking the same questions twice

Now in cockpit we have a new wizard installation for the hosted engine, it is nice, but it asking the user/admin the same configuration question twice.
- In the beginning you are asked to enter all relevant storage, VM and engine info, but then after approving anything and starting to deploy, we are asked again for the same questions, which we already answered in steps 1-5 in the wizard.
The second round of the question appears to be a part of the old HE installation wizard. 

We should be asked only once before and during the deploy.

Version-Release number of selected component (if applicable):
ovirt-hosted-engine-ha-2.2.0-0.2.master.gitcbe3c76.el7ev.noarch
ovirt-hosted-engine-setup-2.2.0-0.4.master.git0b67c21.el7ev.noarch

cockpit-151-1.el7.x86_64
cockpit-ovirt-dashboard-0.11.1-0.4.el7ev.noarch
cockpit-bridge-151-1.el7.x86_64
cockpit-ws-151-1.el7.x86_64
cockpit-dashboard-151-1.el7.x86_64
cockpit-system-151-1.el7.noarch
cockpit-storaged-151-1.el7.noarch

How reproducible:
100%

Steps to Reproduce:
1. Start hosted-engine deploy via cockpit

Actual results:
Asked twice for the same configuration question in the new HE wizard installation

Expected results:
Should be asked only once