Revert "Use the appropriate name for horizon ssl ca parameter"
Revert "Use the appropriate name for horizon ssl ca parameter"

Because the dependent patch[1] does not present in stable/victoria
we should not merge this patch until stable/victoria release is created
for TripleO projects.
This revert will be reverted once stable/victoria branch is created.

This reverts commit d3b099fac949bed6e5da0660b13509cf391ca571.
Resolved conflict caused by the subsequemtn commit[2]

[1] https://review.opendev.org/#/c/758041/
[2] 132c0b1e792084664920fc8ac6c984cb4d1b823d

Conflicts:
	deployment/horizon/horizon-container-puppet.yaml

Related-Bug: #1901626
Change-Id: I1cc635715084789602fc40084ba5df4d5790199c

openstack/tripleo-heat-templates,openstack/tripleo-heat-templates